"I'll keep playing him on and off," manager Kirk Gibson said of Roberts. "Right now Cody has done a great job for us recently, and he's going to play more than he normally would."
Coming into Tuesday's game with the Nationals, Roberts was mired in an 0-for-11 and 1-for-28 slump.
"I think he's one hit away from being out of it," Gibson said. "I've watched the quality of his work, and he's tried to correct some things he's doing. This is a great situation: He's on the bench, he has the chance to come in and have an impactful at-bat."
Ransom, who opened the year with Triple-A Reno, is hitting .318 with a pair of homers in 22 at-bats.
While the results don't show it, Gibson does think that Roberts' frame of mind is better of late.
"I just saw him overthinking things, and now I just think he's in a better place," Gibson said. "I think he's started to relax more."