Ruiz (concussion) is ramping up baseball activities and is expected to begin a minor-league rehab assignment soon, Bobby Blanco of MASNSports.com reported Friday.

Ruiz started taking swings in batting practice last week, a significant stride in his recovery from a concussion he sustained in early July. The catcher will ramp up baseball activities this weekend, and the expectation is that he'll be cleared to begin a rehab assignment soon. In the meantime, Riley Adams and C.J. Stubbs will handle catching duties.

Nationals interim manager Miguel Cairo said Friday that Millas will not return this season after undergoing surgery Friday to stabilize the fracture and repair the joint on his left index finger, Bobby Blanco of MASNSports.com reports.

Millas suffered the injury on a catcher's interference during Wednesday's game against the Yankees. The Nationals expect him to be ready for the beginning of spring training.

The Cardinals placed Pozo on the 7-day concussion injured list Friday.

Pozo was able to remain in the game after being shaken up by a foul tip to the mask Thursday against the Pirates, but concussion symptoms eventually surfaced and he'll have to miss some time. The Cardinals will go with Jimmy Crooks and Pedro Pages at catcher while Pozo is sidelined.

The Cardinals selected Crooks' contract from Triple-A Memphis on Friday.

Crooks has slashed .337/.404/.518 with three home runs in August with Memphis and has hit .274/.337/.441 with 14 home runs there for the full season. The left-handed hitter could be worth a look in fantasy leagues if the Cardinals use him on the long side of a platoon at catcher with Pedro Pages. Crooks is not in the lineup for Friday's game in Cincinnati against righty Zack Littell, though the Cardinals could just be giving him a day to get settled in.

The Nationals selected Stubbs' contract from Triple-A Rochester on Friday, Andrew Golden of The Washington Post reports.

The former Astros farmhand will take the place of Drew Millas (finger) on the active roster. Stubbs will be making his MLB debut when he gets into a game and is set to serve as Riley Adams' backup at catcher.

The Nationals placed Millas on the 10-day injured list Friday with a fractured and dislocated left index finger.

Millas suffered the injury when he was struck by an Austin Wells swing during Wednesday's game against the Yankees. The Nationals haven't revealed a timeline for Millas' return, but there's a good chance he's done for the season.

The Cardinals will place Pozo on the 7-day concussion injured list prior to Friday's contest in Cincinnati, Katie Woo of The Athletic reports.

Pozo was examined by the trainer after taking a foul tip off his mask Thursday. and while he stayed in and finished the game, he subsequently displayed symptoms of a concussion. Jimmy Crooks is being called up from Triple-A Memphis to take Pozo's spot on the active roster and split catching duties with Pedro Pages.

Pozo will be evaluated for a possible concussion Friday after taking a foul tip off the mask during Thursday's win over the Pirates, Derrick Goold of the St. Louis Post-Dispatch reports.

Pozo was checked out by the Cardinals' training staff Thursday and stayed in to finish the contest, but that doesn't preclude concussion symptoms from surfacing later. Catcher Jimmy Crooks is expected to be promoted from Triple-A Memphis, which could point to Pozo being placed on the 7-day concussion injured list.

The Cardinals will call up Crooks from Triple-A Memphis prior to Friday's game against the Reds, Derrick Goold of the St. Louis Post-Dispatch reports.

Crooks is ready for an opportunity at the major-league level after slashing .274/.337/.441 with 14 home runs this season with Memphis. The 24-year-old has been red hot in August, producing a .337/.404/.518 line with three long balls. It's not clear what the corresponding move will be to get Crooks on the active roster, but Yohel Pozo was shaken up by a foul tip off the mask Thursday. If Pozo needs to miss time, Crooks could share catching duties with Pedro Pages.

Realmuto went 1-for-3 with a two-run home run, a walk and a second run scored in Thursday's 19-4 win over Atlanta.

Realmuto hit the second of three Philadelphia homers in the first inning, tying the game at 3-3 to erase Atlanta's early lead. The catcher had gone 0-for-12 with five strikeouts over the Phillies' three-game series against the Mets earlier in the week. Realmuto has four homers in his last nine contests and is up to 11 long balls on the year. He's added 47 RBI, 47 runs scored, 24 doubles, one triple, seven stolen bases and a .271/.327/.411 slash line through 111 games.