MLB Player News

Diaz is not in the lineup Sunday against the Orioles, Marc Topkin of the Tampa Bay Times reports.

Diaz started the past two games and clubbed his eighth homer of the season Saturday, but he'll take a seat for the series finale in Baltimore. Joey Wendle will start at the hot corner in his place.

Voit (knee) was activated from the 10-day injured list Sunday and is starting at first base against the Mariners, Lindsey Adler of The Athletic reports.

The 30-year-old appeared in three rehab games with Triple-A Scranton/Wilkes-Barre and will quickly rejoin the big-league club with Anthony Rizzo sidelined after testing positive for COVID-19. Voit has been injured for most of the season and lost out on the everyday role at first base thanks to the acquisitions at the trade deadline, but he'll have the chance to start, at least briefly, with RIzzo out for the immediate future. Voit has a .698 OPS in 29 big-league games this season, while he went 3-for-11 with a home run during the brief rehab stint.

Manager Aaron Boone announced Sunday that Rizzo tested positive for COVID-19 and will be placed on the injured list, Lindsey Adler of The Athletic reports.

Rizzo started all nine games since being acquired from the Cubs ahead of the trade deadline, but he'll now be unavailable for at least 10 days after testing positive for COVID-19. Luke Voit (knee) was activated from the injured list in a corresponding move and should see the bulk of the playing time at first base in the meantime for the Yankees.

Olson went 4-for-5 with a double, three runs scored and two RBI in Saturday's 12-3 win over the Rangers.

The first baseman has slugged a two-bagger in three straight games and swatted an extra-base hit in five of his last six. The power surge has boosted Olson's batting average since the All-Star break to .304 (21-for-69) with a .638 SLG thanks to eight doubles and five homers.

Gurriel (neck) took grounders on the field Saturday, Danielle Lerner of the Houston Chronicle reports.

Gurriel landed on the 10-day injured list Friday after he missed three consecutive games due to neck stiffness, and he's eligible to return as early as Aug. 13. The team hasn't yet revealed when he'll be back in action, but it's encouraging to see him resume activities shortly after his placement on the IL.

Mountcastle is still feeling concussion symptoms and may need a trip to the injured list, Nathan Ruiz of The Baltimore Sun reports.

Mountcastle hurt his head while attempting a steal Friday and was forced to exit the game. While he's yet to be removed from the roster, he won't start Saturday's game against the Rays and could be placed on the concussion injured list soon. Trey Mancini will start at first base in his absence, with Anthony Santander serving as the designated hitter.

O'Hearn will sit Saturday against the Cardinals.

The Royals' regular starting nine will be a man short due to the lack of the designated hitter in the National League park. O'Hearn served as the right fielder Friday, but that spot will be occupied by Hunter Dozier in the second game of the series.

Lowe will sit Saturday against Oakland.

Lowe hasn't done much thus far in the second half, hitting.206/.296/.286 with zero homers in 19 games. Curtis Terry will be the first baseman in his absence, with Adolis Garcia resting his legs in Terry's usual spot as the designated hitter.

Vaughn isn't in the lineup Saturday against the Cubs, Vinnie Duber of NBC Sports Chicago reports.

Vaughn had started in each of the last four games, and he went 4-for-13 with a homer, three runs, two RBI and three walks. Eloy Jimenez will start in left field and bat fourth in Saturday's contest at Wrigley Field.

Mountcastle is being evaluated for a concussion following his removal from Friday's game against the Rays, Nathan Ruiz of The Baltimore Sun reports.

Mountcastle took a hard tag to the side of the head while attempting to steal second base in the first inning Friday. Although he initially stayed in the game, the 24-year-old was removed in the third inning under the league's concussion protocols. If team doctors confirm a concussion, Mountcastle will need to pass several tests before he's cleared to return.