CINCINNATI -- Troy Glaus rejoined the Cardinals on Tuesday and pronounced himself ready to play, but exactly how much he'll get to play is in question.

Glaus, who has dealt with one injury after another this year, was most recently sidelined with pain in his left oblique. He was not with the team on the first two stops of its current three-city road trip, instead staying in St. Louis to get treatment. He made improvement, though, so he caught up with his teammates at Great American Ball Park.

"I've been hitting for six days," he said. "Taking grounders, throwing, doing everything."

However, Mark DeRosa will continue to get the bulk of playing time at third base. And behind him, David Freese, Khalil Greene and Joe Thurston all need to get innings and at-bats as well. Glaus needs to show something if he wants to secure a place on the Cardinals' postseason roster, but it will be difficult for him to get the chance to do that.

"We'll do the best we can with him," manager Tony La Russa said. "But the priority is to take six shots to win games. That's the No. 1 priority. He's in a tough spot, has been in a tough spot. Every time he starts to get better, he takes a step back."