Player Bio
| HT/WT: 5-8, 195 lbs |
| Birthplace: Knoxville, TN |
| Age: 25 |
| School: Notre Dame |
| Experience: 3 |
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1:44Breaking Down Jared Goff & the Lions' Offense
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1:54Lions Outlast Jets Behind Jahmyr Gibbs' Big Day
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0:48Why You Should Bet on the Vikings to Win NFC North
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1:18Bills Defense Slows Down Jahmyr Gibbs
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0:43Lions Schedule Gets Easier After Tough Start
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1:51Have the Lions Missed Their Super Bowl Window?
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1:31Dan Campbell's Role in Lions' Rough Start
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1:31Has the Detroit Lions Defense Gone Missing?
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1:34Why the Bills Don't Fear 13 Personnel
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1:37Josh Allen, Bills Roll Over Lions on TNF
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1:04NFL Week 2 Bold Predictions: Lions vs. Bills
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10:12NFL Week 2 Bold Predictions
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1:53Carhartt Highmark Highlight: Bills to Debut New Stadium vs. Lions
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1:52Ravens Put Lamar Jackson Under Center More in Week 1
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1:42Lions vs. Bills: Players to Watch
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1:59Jahmyr Gibbs Embraces Bigger Workload
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0:54Lions at Bills Week 2: Which Defense Has the Edge?
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0:44Jahmyr Gibbs Goes Wild in 1st Game as Lions Lead Back
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0:50Lions' Jared Goff Off to Hot Start in 2026
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0:47DJ Moore Shows Out in 1st Game With Bills
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2026 Defensive
| STATS |
CMB
Total Tackles
|
INT
Interceptions
|
TD
Interceptions Returned For Touchdown
|
FUM
Forced Fumbles
|
SCK
Sacks
|
|---|---|---|---|---|---|
| Regular Season | 5 | 0 | 0 | 0 | 0.0 |
Top Thomas Harper News
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Lions' Thomas Harper: Placed on injured reserve
The Lions placed Harper (ankle) on injured reserve Saturday.
Harper has not been able to practice since sustaining an ankle injury during the Lions' Week 2 loss to the Bills. The safety departing for IR leaves the Lions' secondary dangerously low on defensive backs, now without Harper, Avonte Maddox (foot), Brian Branch (Achilles) and Kerby Joseph (knee). The Lions have elevated Jalen Mills from the practice squad to start at Strong Safety in Sunday's game against the Jets.
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Lions' Thomas Harper: Won't play in Week 3
Harper (ankle) has been ruled out for Sunday's game against the Jets, Tim Twentyman of the Lions' official site reports.
Harper was held out of practice all week due to an ankle injury, which he likely picked up during the Lions' 41-31 loss to the Bills in Week 2. The Lions' secondary is thin, especially with Avonte Maddox (foot, IR) out for the rest of the 2026 season, meaning that Detroit will have to turn to options like Bishop Fitzgerald, Christian Izien and even Roger McCreary to start at safety next to Chuck Clark. Harper will aim to recover enough to return for Week 4 against the Panthers on Sunday, Oct. 4.
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Lions' Thomas Harper: Misses another practice Thursday
Harper (ankle) did not practice Thursday, Nolan Bianchi of The Detroit News reports.
This will mark the second consecutive practice Harper has missed this week, so things aren't looking too promising ahead of the Week 3 meeting with the Jets. The 25-year-old appeared in both of Detroit's games this season, amassing five total tackles and two passes defended.
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Lions' Thomas Harper: Suits up Thursday
Harper produced three solo tackles in Thursday night's preseason opener against the Bengals.
Harper logged 39 defensive snaps and 12 special-teams snaps in the contest. The free safety played 56 percent of the defensive snaps for the Lions. Harper's ability to consistently take down the ball carrier solo may earn him more snaps in subsequent preseason games, such as in next Saturday's showdown with the Commanders.
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Lions' Thomas Harper: Ruled out with concussion
Harper (concussion) has been ruled out ahead of Sunday's game against the Bears.
Harper upgraded to a limited participant in Thursday's practice but will be unable to make the jump to full participation and clear the league's concussion protocol in time for Sunday's divisional showdown. With Jalen Mills likely set to start at free safety for the Lions in Sunday's contest, Harper ends the season with 37 tackles (26 solo) and five passes defensed, including one interception, over 12 games.
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Lions' Thomas Harper: Back at practice Thursday
Harper (concussion) was a limited participant at practice Thursday.
Harper was able to make his return to practice for the first time since suffering a concussion Christmas Day against the Vikings. The safety will still have to clear concussion protocol in order to play Sunday against the Bears, but his participation Thursday was a step in the right direction.
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Lions' Thomas Harper: Sits out practice Wednesday
Harper (concussion) didn't participate in practice Wednesday.
Harper was diagnosed with a concussion during last Thursday's Christmas Day game against the Vikings. He'll need to clear the NFL's five-step concussion protocol to have a chance of suiting up Sunday versus Chicago. If Harper can't play, Jalen Mills could absorb most of his defensive snaps.
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Lions' Thomas Harper: Suffers concussion Thursday
Harper (concussion) has been ruled out for the rest of Thursday's contest against the Vikings.
Harper suffered a head injury in the second half, and he has now been diagnosed with a concussion. In his absence, Jalen Mills and Daniel Thomas will continue to operate in elevated roles in Detroit's secondary.
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Lions' Thomas Harper: Evaluated for possible concussion
Harper (head) is being evaluated for a concussion during Thursday's matchup against the Vikings.
Harper won't be able to return to action Thursday if he's officially placed in the NFL's concussion protocol. Jalen Mills and Daniel Thomas will both be candidates to handle expanded roles on defense if Harper is not cleared to retake the field Christmas Day.
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Lions' Thomas Harper: Set to start
Harper (concussion) doesn't carry an injury designation ahead of Sunday's game against the Steelers.
Harper was a full participant in practice this week and has officially cleared concussion protocol. The free safety has avoided an injury designation just in time to take up the mantle of starting free safety from an injured Kerby Joseph (knee). Harper's last starting opportunity was in Week 13 against the Packers, when he totaled four tackles (one solo) through 58 defensive snaps.
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Lions' Thomas Harper: Full practice Wednesday
Harper (concussion) was a Richard Silva of The Detroit News in Wednesday's practice.
It's unclear if Harper remains in the league's concussion protocol, but it appears he has a good chance to suit up Sunday against the Steelers after missing last Sunday's loss to the Rams. With Brian Branch (Achilles) out and Kerby Joseph dealing with a knee injury, Harper could be in line for heavy snaps on defense against Pittsburgh.
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Lions' Thomas Harper: Won't play Week 15
Harper (concussion) has been ruled out for Sunday's game versus the Rams.
Harper sustained a concussion during the Week 14 win over the Cowboys on Thursday Night Football. The 25-year-old was limited throughout this week of practice and deemed questionable on Friday, but he'll ultimately miss at least one more game with this issue. With fellow safeties Brian Branch (Achilles) and Kerby Joseph (knee) both ruled out as well, veterans Daniel Thomas, Avonte Maddox and Jalen Mills will all likely take on bigger roles versus LA.
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Lions' Thomas Harper: Questionable to play Sunday
Harper (concussion) is questionable for Sunday's matchup against the Rams, Eric Woodyard of ESPN.com reports.
Harper was a limited participant in all three practices heading into Week 15. The 25-year-old suffered a concussion in the Lions' Week 14 win over Dallas and will need to clear the league's five-step concussion protocol before having a chance to play Sunday against the Rams.
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Lions' Thomas Harper: Logs limited session Wednesday
Harper (concussion) logged a limited practice Wednesday.
Harper suffered a concussion in Detroit's Week 14 win over Dallas, so it's no surprise that he was limited to begin the week. He'll have to work through concussion protocol before being cleared to play Sunday against the Rams, which will likely require at least one full practice session.
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Lions' Thomas Harper: Done for night
Harper (concussion) has been ruled out for the rest of Thursday night's matchup with the Cowboys, Greg Auman of Fox Sports reports.
Harper sustained a concussion in the first quarter, and he will now be forced to sit out the remainder of the night. Daniel Thomas will continue to operate in a more significant role at safety in Harper's absence versus Dallas.
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