ST. LOUIS -- Tyler Greene made one more start at shortstop for the Cardinals on Tuesday night, but the two men he's replacing are both coming along well.

Khalil Greene, St. Louis' starting shortstop, is just about ready to return to the starting lineup after missing a week due to right forearm discomfort. And backup infielder Brendan Ryan continues to make progress in his recovery from a left hamstring strain.

"I was told ... that Khalil says he's ready to go," manager Tony La Russa said Tuesday afternoon. "But I'm going to watch him in the workout just to see how accurate that is."

Greene last played April 28 in Atlanta. The next night, Ryan sustained his hamstring injury and was placed on the disabled list. Ryan has been participating in virtually all workouts, including infield practice, hitting and running. However, he cannot be activated until late next week.

"I'm taking ground balls and all that," Ryan said Tuesday. "I hit [Monday]. I don't know what the plan is. I'm pretty sure I'll be ready before the 15 days are up. So I don't know if I'll stay with the team or potentially go play somewhere. ... I think I'm way ahead of the game. Were I not DL'd, I'd probably be available at this time."