4 Cliff Pennington, SS

With Didi Gregorius' emergence, Diamondbacks veteran shortstop Cliff Pennington has seen his playing time dwindle. In fact, he's been sharing time at second base with Josh Wilson and Martin Prado, and he's made just three starts since May 5.

He could see even less playing time when Aaron Hill (hand) comes off the disabled list. Pennington is batting just .212 through 34 games and isn't exactly forcing his way into the lineup.

"When you get a chance to play you got to play," Pennington said, per The Arizona Republic. "I got off to a slow start and had a rough stretch for a few at-bats, but I’ve been swinging it good in May and I feel good, so I just got to keep that going."

Diamondbacks infielder Cliff Pennington, who struck out in his only at-bat as a pinch-hitter Sunday during a loss to Philadelphia, is batting just .210 this season entering Monday's games. Pennington has only started twice in the last six games and wasn't in the starting lineup for Monday's game against Atlanta, either. 

Pennington has seen just 17 at-bats over seven appearances and five starts in May. He's gone 4 for 17 (.235) over that stretch with a homer and six RBI. Josh Wilson and Martin Prado are seeing most of the starts at second base over Pennington.