Vaughn is not in the lineup for Wednesday's game in Seattle.

Vaughn had started each of the previous five games for the Brewers but will get some rest in Wednesday's series finale. Tyler Black will handle first base in Vaughn's stead.

Toglia is out of the lineup for Wednesday's game against the Cardinals, Thomas Harding of MLB.com reports.

Toglia will take a seat for the second time in the series while he's batting just .155/.231/.239 with a 39.7 percent strikeout rate over his last 20 games. Kyle Farmer will get the nod at first base Wednesday, and Toglia could soon be headed back to Triple-A Albuquerque if he's unable to cut down on the strikeouts in his future starts.

Olson went 3-for-5 in Tuesday's loss to the Giants.

Atlanta managed only eight hits in total, so Olson's consistent presence on the basepaths didn't produce any offense in a shutout loss. The first baseman has hit safely in six straight games, and through 17 contests in July he's slashing .290/.372/.478 with four doubles, three homers, 10 runs and 12 RBI.

Horwitz went 3-for-4 with a walk, two doubles, two runs scored and two RBI in Tuesday's 8-5 win over the Tigers.

The 27-year-old first baseman has been getting regular turns as the Pirates' leadoff hitter against right-handed pitching in July, and Horwitz has begun to take advantage of the opportunity. He's racked up seven hits across the last three games, an impressive turnaround after he'd gone 2-for-25 in his prior eight contests. On the season, Horwitz is slashing .249/.318/.348 with two homers, 19 RBI and 22 runs in 201 plate appearances.

Wagaman is out of the lineup for Wednesday's game against the Padres.

Since the beginning of July, Wagaman is slashing just .119/.229/.143 with one extra-base hit (a double) in 13 games, and his ongoing struggles appear to be costing him some playing time. He'll take a seat for the second time in the series as Liam Hicks replaces him at first base.

Steer is not in the lineup for Wednesday's game against the Nationals.

Steer has been nursing a sore quadriceps in recent days, but his absence from the lineup Wednesday appears to be more of a maintenance day with the Reds wrapping up their series in Washington with a day game after a night game. Santiago Espinal will step in at first base in place of Steer, who had started each of the Reds' previous 15 contests.

Bauers received a cortisone injection for his shoulder over the All-Star break, Jack Stern of BrewerFanatic.com reports.

Bauers will continue to receive treatment on his shoulder and sees mid-August as a possible return window. He had been going through some struggles at the plate before being placed on the IL, which may have been the result of playing through the shoulder discomfort that has sidelined him.

Valdez is batting .182 with zero home runs and an 8:4 K:BB in 10 games since getting promoted from High-A Greensboro to Double-A Altoona on July 1.

A righty-hitting corner bat who won't offer much defensive value, Valdez slashed .303/.385/.592 with 20 home runs, a 9.9 percent walk rate and a 24.5 percent strikeout rate in 72 games at High-A prior to his promotion. His 172 wRC+ ranks second among all qualified High-A hitters, behind Josue Briceno (180 wRC+). As a 21-year-old bat-first player, Valdez will be expected to do plenty of damage at Double-A over the rest of the season.

Horwitz went 3-for-4 with an RBI and a run scored Monday against the Tigers.

Horwitz has bounced around the lineup since early July, but he's led off in five of the Pirates' last eight games against right-handed pitching. After a solid June, Horwitz has struggled to a .184 average in July, recording only three RBI and three runs scored across 14 games.

Contreras went 3-for-5 with a solo home run, a double, two total runs and two total RBI in a 6-2 victory versus the Rockies on Monday.

Contreras put the Cardinals on the board with a big 443-foot solo homer in the fourth inning and gave the team its first lead with a run-scoring single in the fifth. The catcher-turned-first-baseman also stroked a double to finish with his third three-hit performance of the season. Contreras has gone 5-for-15 with three extra-base hits through the first four games of the second half.