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Walls isn't available for Sunday's game against Atlanta due to an illness, Ryan Bass of Bally Sports Sun reports.

Advice: The switch-hitting Walls' bout with the illness might help explain why he's out of the lineup Sunday against a right-hander (Hurston Waldrep) for the second day in a row. Jose Caballero -- who had been battling an illness of his own lately -- was scheduled to start at shortstop Sunday in Walls' place, but he was scratched after experiencing left calf tightness leading up to opening pitch. Amed Rosario is now set to operate as the Rays' shortstop in the series finale in Atlanta. Rotowire.com Today, 10:12 am

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

Advice: The switch-hitting Walls is sitting against a right-handed starting pitcher (Hurston Waldrep) for the second day in a row, perhaps hinting that he hasn't quite locked down an everyday role at shortstop since his return from the injured list June 7. Walls had started in six of the Rays' ensuing eight games following his reinstatement, but he went just 2-for-18 with three walks against 10 strikeouts during that stretch. Jose Caballero (calf) and Amed Rosario look to be Walls' main threats for playing time at shortstop. Rotowire.com Today, 9:35 am

Solano is out of the lineup for Sunday's game against the Mets.

Advice: Solano had started each of the last eight games -- with seven coming at third base -- and went 5-for-29 with two home runs, three walks, six RBI and four runs. He should continue to have a regular spot in the lineup versus left-handed pitching, but Solano's opportunities to play against righties will likely become more limited now that Manny Machado is playing third base again after he had relegated to designated-hitter duties recently following his return from a right hip flexor strain. Rotowire.com Today, 9:21 am

McMahon went 2-for-5 with two doubles, an RBI, two runs scored and a stolen base in Saturday's win over the Pirates.

Advice: McMahon doubled in his third trip to the plate and advanced to third on a sacrifice fly before then stealing home to increase Colorado's lead to five runs. The third baseman would add an RBI double in the eighth, giving him his sixth multi-base hit over his last four games. McMahon has also recorded multiple hits and scored two runs in three of his last four contests. Rotowire.com Today, 8:33 am

Polanco (hamstring) started at designated hitter in High-A Everett's win over Eugene on Saturday and went 1-for-4 with two strikeouts.

Advice: Polanco was lifted for a pinch hitter in the ninth inning, but he got a solid amount of plate appearances in during his first game action of any kind since May 26. The veteran infielder is slated to play with the AquaSox again Sunday before shifting his rehab assignment to Triple-A Tacoma on Tuesday, per Ryan Division of The Seattle Times. Rotowire.com Today, 8:26 am