"We'll use him probably like we did last time," manager Joe Maddon said. "Probably against a lefty now and then, but I'm not afraid to use him against a right-hander also. But right now, we just want to get him back out there. He looks well."
Ruggiano, who joined the team Wednesday, said the problem began shortly after the All-Star break.
"It just kind of wouldn't go away," Ruggiano said. "I guess there was inflammation."
Ruggiano reports that the problem has now cleared up.
"Everything is pretty good," Ruggiano said. "I'm very glad to be back here."
According to Ruggiano, decelerating and "changing gears" when he was running presented the most issues for him in dealing with his problem.
"[I] worked through it and got a good week's worth of games in [at Durham], and it responded well every time," Ruggiano said. "It was a good little rehab session."
Guyer, 25, has batted .167 with a home run and two RBIs in two games for the Rays this season, and he has hit .312 with 14 homers and 61 RBIs in 107 games at Triple-A.
"He's definitely a guy we want to see, now and in the future," Maddon said. "And it definitely helps our offseason planning. We're playing a lot of people in contention."
Does Guyer have a chance to start for the Rays in 2012?
"Sure he could, sure he could, he's definitely the kind of guy you want to look at," said Maddon.
Guyer was ranked seventh among Rays prospects by MLB.com prior to this season.
Guyer and Ruggiano will be the only moves on Thursday according to Maddon, but he added that "there are a couple of things we might look at when we get home."