The Mets will place Alvarez on the 10-day injured list Tuesday with a right thumb injury, Joel Sherman of the New York Post reports.

Alvarez injured the thumb during Sunday's win over the Mariners and had been set to undergo an MRI. It's not clear what exactly the MRI revealed, but Andy Martino of SNY.tv relays that the Mets have some concern the injury could be a season-ending concern. Luis Torrens will serve as the Mets' primary catcher while Alvarez is shelved.

Kelly is out of the lineup for the first game of Tuesday's doubleheader versus the Brewers.

Reese McGuire will draw the start behind the dish for the first game of the day, but Kelly should form a battery with starting pitcher Jameson Taillon (calf) in the second contest of the twin bill. Kelly continues to uphold an excellent .819 OPS on the season, but his production has tailed off a bit thus far in August, as the veteran backstop is slashing .256/.347/.256 through 14 games.

Moreno (finger) will catch back-to-back games for Triple-A Reno on Tuesday and Wednesday, MLB.com reports.

The two-game set will serve as a final test before Moreno is activated. He's alternated between catcher and DH over his first four rehab appearances but hasn't caught a full nine-inning game. Presumably, in addition to catching back-to-back, the Diamondbacks want to see him on the field for full games in both.

Murphy is out of the lineup for Monday's game against the White Sox.

With Atlanta reopening a regular spot in the lineup for Marcell Ozuna at designated hitter over the last couple of weeks, Murphy has faded into more of a timeshare at catcher with Drake Baldwin. The right-handed-hitting Murphy should see the bulk of the starts versus left-handed pitching, but the lefty-hitting Baldwin will likely be Atlanta's top choice to start against righties.

Stephenson (thumb) isn't listed in the starting lineup for Monday's game against the Angels.

Stephenson is still being slowed by a sore left thumb, opening up another opportunity for Jose Trevino behind the dish. Stephenson can continue to be considered day-to-day until the team provides another update.

Smith is not in the Dodgers' starting lineup against the Rockies on Monday, David Vassegh of AM 570 LA Sports reports.

Smith will get a breather while Dalton Rushing serves behind home plate and bats ninth for Monday's series opener. Smith went 0-for-10 with five strikeouts during the Dodgers' three-game weekend sweep of the Padres, and the veteran catcher has gone 5-for-38 (.132) with one home run and four RBI since the beginning of August.

Bart is out of the lineup for Monday's game against the Blue Jays.

Henry Davis will get the nod behind the dish Monday, but the playing time at catcher seems to be tilting in Bart's favor of late. With Davis batting just .098 since the All-Star break, Bart was awarded starts in three of the previous four contests. Bart went 3-for-10 with two doubles, two walks and two RBI during that stretch to boost his case for earning more opportunities at Davis' expense.

Mets manager Carlos Mendoza said after Sunday's 7-3 win over the Mariners that Alvarez would return to New York on Monday to undergo an MRI on his jammed right thumb, the Associated Press reports. "Right now, we don't know what we're dealing with," Mendoza said of Alvarez's injury.

Alvarez went 3-for-4 with two runs scored and an RBI before exiting in the eighth inning, after he had initially stayed in the game upon jamming the thumb on a head-first slide into second base on his seventh-inning double. The Mets are off Monday, so the team will likely wait for the results on Alvarez's MRI to become available before determining if he'll meet back up with the team in Washington on Tuesday for the start of a three-game set with the Nationals. Luis Torrens would be in line to take over as the Mets' No. 1 catcher if Alvarez requires a stint on the injured list.

Jansen will start at catcher and bat eighth in the first game of Monday's doubleheader versus the Cubs.

William Contreras will get a break from catching but stay in the lineup at designated hitter for the first contest of the twin bill, enabling Jansen to make a second consecutive start. Since being acquired from the Rays on July 28, Jansen has seen light usage overall with Milwaukee, appearing in seven contests while slashing .222/.286/.278 with four runs and one RBI.

Bart went 1-for-4 with a double and two RBI on Sunday against the Cubs.

Bart saw his playing time slip for much of July, but he has mostly alternated starts with Henry Davis since Aug. 4. In eight games since, Bart has gone 6-for-24 with two doubles, one home run and four RBI. He delivered a two-RBI double in the sixth inning Sunday to briefly give the Pirates the lead.