The Nationals optioned Millas to Triple-A Rochester on Friday.

The 27-year-old will head back to Rochester since Keibert Ruiz has recovered from his concussion. Millas appeared in three games during his week-plus in the majors and went 1-for-7 with a double, an RBI and two runs.

The Nationals reinstated Ruiz (concussion) from the 7-day injured list Friday.

The 26-year-old landed on the concussion IL on June 24 after being struck by a foul ball while in the dugout, but he's back on the active roster after missing little more than a week. Prior to the injury, Ruiz was scuffling at the plate through 15 games in June with a .167/.164/.204 slash line and just two extra-base hits.

Porter was designated for assignment Thursday, Shayna Rubin of the San Francisco Chronicle reports.

Porter made his Giants debut June 11 but was sent back to Triple-A Sacramento six days later. He'll now lose his spot on the 40-man roster, with Sergio Alcantara taking his place.

Bailey is not in Thursday's lineup against the Diamondbacks.

Bailey has started four straight games behind the plate, going 3-for-12 with four RBI in that span. He'll get a routine day off Thursday, with Andrew Knizner taking over behind the plate.

Smith is not in the Dodgers' lineup against the White Sox on Thursday.

Smith will get some rest during Thursday's rubber match against the White Sox after going 3-for-5 with a home run and three walks in the first two games of the series. Dalton Rushing has the start behind the plate and is batting eighth.

Kelly isn't in the lineup for Thursday's game against the Guardians.

Kelly has been on fire since late June, going 8-for-19 with four RBI and two runs scored across his last seven games. He'll step out of the starting nine Thursday, however, allowing Reese McGuire to start behind the dish and bat ninth.

Wells (finger) will start at catcher and bat eighth in Thursday's contest in Toronto.

Wells missed the previous four starts while recovering from artery damage in his left index finger, although he did appear as a pinch runner in Wednesday's game. The 25-year-old has struggled at the plate lately, slashing only .159/.191/.205 across his last 14 contests.

Baldwin is not in the lineup for Thursday's game against the Angels.

Baldwin started the first game of the series Monday but has now sat out each of the next two contests in favor of Sean Murphy. Murphy has started over Baldwin in four of the last five tilts, although Atlanta is facing a righty in Jose Soriano on Thursday for the first time during that span.

Diaz is out of the lineup for Thursday's game against the Rockies, Brian McTaggart of MLB.com reports.

Diaz will receive a breather for the series finale in Colorado after he had started in each of the Astros' last six games, with five of those starts coming behind the dish. Victor Caratini will handle catching duties Thursday for the Astros.

Winkel (wrist) has gone 1-for-10 with four strikeouts in three games for Triple-A St. Paul since being activated from the 7-day injured list June 25.

Winkel was on the shelf for three weeks due to a right wrist tendon injury. The 25-year-old catcher is slashing .256/.293/.500 with five home runs in 82 plate appearances for St. Paul on the season.