Walker (illness) is batting cleanup as the designated hitter Sunday against Atlanta, Theo Mackie of The Arizona Republic reports.

Walker was initially out of the lineup Sunday for the second straight game due to food poisoning, but he ended up being a late addition to the starting nine. Lourdes Gurriel was pulled from the lineup as a result.

Walker is out of the lineup for Sunday's game against Atlanta.

Walker sat out Saturday's 5-2 loss in what was believed to be a rest day, but his absence from the lineup for the second straight day suggests he could be dealing with an injury or illness. Expect Arizona to provide an explanation on the matter later Sunday, but Emmanuel Rivera will fill in for Walker at first base in the series finale.

Mervis is out of the lineup for Sunday's game against the Padres.

The 25-year-old will sit Sunday with lefty Ryan Weathers on the mound for San Diego, and it marks Mervis' fifth time on the bench in Chicago's last eight games. The first baseman is 0-for-16 with three walks and seven strikeouts dating back to May 24. Trey Mancini will receive the start at first base Sunday.

Montero went 1-for-4 with a triple, two RBI and a run scored Saturday against the Royals.

Montero drew his second start since being recalled Monday, both of which have come at first base with a lefty on the mound. He delivered a two-RBI triple in the second inning to tally his first hit since his most recent promotion. Montero could have a spot on the roster so long as Kris Bryant (heel) and C.J. Cron (back) remain on the injured list, but he appears to be limited to a small-side platoon role.

Singleton went 1-for-4 with one run scored in Saturday's 10-8 win over Cincinnati.

Singleton made his first MLB appearance since 2015, playing first base and batting sixth. Rowdy Tellez operated as the designated hitter Saturday, but he figures to man first on a regular basis, so Singleton will presumably be relegated to a backup role, limiting his overall fantasy value.

Flores went 3-for-4 with a double and two RBI in Saturday's 4-0 win over the Orioles.

Flores has seen his playing time steadily decline with LaMonte Wade at first base and Casey Schmitt holding down a regular role in the middle infield. Over his last 10 games, Flores went a meager 2-for-21 before breaking the slump Saturday. He's now at a .248/.299/.436 slash line with six home runs, 18 RBI, 15 runs scored and seven doubles through 44 contests. Flores appears to be the Giants' preferred first baseman versus southpaws, but he's stuck competing with Blake Sabol for time at designated hitter against righties.

Walker isn't in Arizona's lineup Saturday against Atlanta.

Having recorded a base hit in six of his last seven games, Walker will get a breather Saturday. Emmanuel Rivera will start at first base instead and bat fifth.

Clemens isn't in the Phillies' lineup Saturday against Washington.

Clemens is slashing .250/.318/.300 across his last six games and will get a day to regroup Saturday. While he rests, Drew Ellis will take over at first base and bat eighth.

Goldschmidt went 3-for-4 with a double, a walk and a run scored in Friday's 7-5 loss to the Pirates.

This was Goldschmidt's fourth multi-hit effort over his last eight games, a span in which he's hitting .355 with three home runs. The first baseman ranks fourth in the majors with 18 doubles, and he's added 10 homers to provide solid power output. He's also been consistent with a .298/.401/.521 slash line, 26 RBI, 39 runs scored and seven stolen bases -- that's not quite at the level of his MVP campaign a year ago, but it's still excellent for fantasy managers.

The Brewers selected Singleton's contract from Triple-A Nashville on Saturday.

With Darin Ruf (knee) headed to the 10-day injured list, Singleton will play in the majors for the first time since 2015 and serve as Milwaukee's backup first baseman. Singleton is slashing .258/.384/.483 with 10 homers and 29 RBI through 216 plate appearances with Nashville, but he likely won't make a big enough impact in Milwaukee to become a fantasy asset.