MLB Player News

Walker delivered a pinch-hit solo home run in the Diamondbacks' 4-3 win over the Dodgers on Tuesday.

Walker joined the Diamondbacks nearly a month ago following a stay at Triple-A Reno, but he has been limited to just one start and 14 total at-bats during his time with the big club. As he displayed with Tuesday's home run off Clayton Kershaw -- which measured an estimated 479 feet, according to Statcast -- and throughout his 2017 campaign at Reno, Walker boasts impressive power, but his swing-and-miss ways and lack of defensive flexibility seem likely to limit him to a bench role so long as he sticks around in Arizona. It would probably take an injury to Paul Goldschmidt before Walker receives a longer look.

Olson went 1-for-2 with a double and two walks in Tuesday's loss to the Mariners.

Olson exploded for 24 home runs in just 59 games in the majors last season, and while he hasn't been able to match that torrid pace in 2018 with just three so far, the 24-year-old is still finding a way to reach base consistently. The power will likely come around at some point, though that could be met with a bit of regression in his average -- he currently has an unsustainably high .393 BABIP.

Freeman went 2-for-5 with a double, two RBI and a run scored Tuesday against the Mets.

Freeman played a part in all of the Braves' offensive production Tuesday, lacing a two RBI double down the right-field line in the first inning and later coming around to score in the same inning. It's been business as usual for him this season, and though he only has four home runs, he has 17 extra-base hits and is hitting .318/.435/.561 in 107 at-bats.

Rizzo went 1-for-4 with a leadoff home run in Tuesday's loss to the Rockies.

Rizzo has been struggling this season, so manager Joe Maddon moved him up in the order Tuesday in an effort to get him going, and it paid immediate dividends in the first inning. The slugging first baseman went 15-for-50 with five homers and 12 RBI in a limited run as the leadoff hitter last season, and after Tuesday's blast, he'll likely get a few opportunities there at least in the short term.

Mountcastle (hand) is getting close to joining a minor-league affiliate, Steve Melewski of MASN Sports reports.

Mountcastle has been sidelined all season with a hairline fracture in his right hand, but he's inching closer to making his 2018 debut. The top prospect has been playing in games at extended spring training over the past couple of days, and if he continues to do so with no issues, he should be cleared to join a minor-league affiliate in the coming weeks. He's still looking at a mid-May return.

Stassi was placed on the temporarily inactive list for Triple-A Rochester on Tuesday, Brandon Warne of The Athletic Minnesota reports.

No word has come forth as to why he's inactive, but the minor-league rules regarding inactivity are relatively loose. Stassi was batting .226 with two homers and 10 RBI prior to this move.

Voit was called up to the big leagues Tuesday, Joe Trezza of MLB.com reports.

The 27-year-old appeared in 62 games in his big-league debut for the Cardinals last season, hitting a mediocre .246/.306/.430 with four homers. He was hitting just .205/.354/.256 to start the year for Triple-A Memphis. Voit is pretty much a pure first baseman (with a single start in left field this year being the only exception since 2016) but Jose Martinez is firmly entrenched in that role at the big-league level, so don't expect him to be much more than a bench bat during his stay with the Cardinals. Mike Mayers was optioned to Triple-A Memphis in a corresponding move.

Rizzo is starting at first base and batting leadoff Tuesday against the Rockies.

Rizzo is off to a very slow start to the season, hitting just .149/.259/.189 with one homer through 18 games, so manager Joe Maddon will bump him up to the top of the order in an attempt to get him going at the plate. Maddon did something similar last season and Rizzo responded well, going 15-for-50 with five homers and 12 RBI in the leadoff spot.

Bour (back) is not in the lineup for Tuesday's game against the Phillies, Joe Frisaro of MLB.com reports.

Bour took batting practice Monday and was hoping to return to action Tuesday, but he'll remain sidelined for a fourth straight game as he continues to deal back spasms. The fact that he was eyeing Tuesday as a return date suggests that he's nearing a return and won't need a stint on the DL, though a DL stint has not been ruled out. Derek Dietrich will once again start at first base in his stead, hitting cleanup.

Guerrero went 2-for-4 with a triple, walk and two runs for Double-A New Hampshire in its 7-2 win over Reading on Monday.

After setting the Midwest and Florida State Leagues ablaze as an 18-year-old in 2017, Guerrero entered the season as a clear top-five prospect in all of baseball due to his unmatched hit and power tools. Based on how Guerrero has performed since moving to New Hampshire this season, it appears safe to conclude that he'll be a consensus No. 1 for all prospect hounds once Ronald Acuna and Shohei Ohtani log enough at-bats and innings, respectively, in the majors to exhaust their eligibility. Guerrero has raised his long-term ceiling to even more ridiculous heights by supplying a 1.024 OPS and posting a 10:10 BB:K in 96 plate appearances at Double-A. The third baseman already looks like he might be capable of holding his own in the majors, but a promotion to the Blue Jays in 2018 may be contingent on the team staying in the thick of postseason contention.