Randy Wolf will undergo diagnostic arthroscopic surgery on Wednesday after experiencing more discomfort in his shoulder. It's a tough blow for Wolf, who turned down multi-year deals this offseason to pitch for his hometown team. Now he's looking at going into next season without a guaranteed contract. "I took a gamble, and I lost," Wolf said.

Chin-hui Tsao has been shut down indefinitely, and will miss the remainder of the season. He is resting and rehabbing his shoulder, but could be facing another major surgery.

Also, Nomar Garciaparra could be activated from the disabled list as soon as today to serve as a pinch hitter. His attempts have jogging have been met by sharp pain, but he can swing a bat. Kirk Gibson, anyone?

Esteban Loaiza will have his Dodgers debut moved up a day to Monday in Chicago. He will wear Brett Tomko's old No. 35. No corresponding roster move has been made official. Could an 11th-hour trade be in the works?

UPDATE: It's official, Eric Stults has been optioned to Class AAA Las Vegas, though he might not report. Stults can return to the Dodgers on Sept. 4 after Las Vegas' season ends.