"He did fine and had no issues. It's a positive sign for him."
Rendon spent all of his time in the field at second base, confirming that he'll likely become the regular at the position when he returns to the active roster. Third baseman Yunel Escobar is batting over .300, so the team would prefer to keep him in the lineup. Playing second base also will help Rendon as he makes his way back from the oblique injury he sustained last month in addition to the sprained left knee from Spring Training.
"The throw is not as long, so that helps him, and he can take his time making throws, make sure that he's in good position," Williams said.
Rendon won't do any baseball activities on Thursday.
"We'll re-evaluate and see where he's at," Williams said. "I'm assuming he'll be a little sore tomorrow because he hasn't played a lot. So we'll get him through that and get him a good workout and re-evaluate what to do from there."
• Jayson Werth (contused left wrist) joined the team in Chicago on Tuesday, but left on Wednesday to see another doctor. Werth has had three surgeries on the wrist.
"Jayson is going to see his guy to get a further evaluation on it," Williams said. "We'll probably see him in Cincinnati [over the weekend]."
• Doug Fister, who's been on the disabled list since May 15 with tightness in his forearm, began throwing again on Wednesday. He played catch and will need to progress through a few levels of throwing before he starts throwing off a mound. There's no timetable for his return.
John Jackson is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.