"He started running yesterday, so we'll just see how he progresses and take it from there," Washington said. "It's hard for me to say, because I don't know what his progress is going to be."
The switch-hitter was 3-for-34 (.088) since being acquired from the Washington Nationals on July 31 in exchange for Minor League right-handers Tanner Roark and Ryan Tatusko.
If Guzman is healthy, the Rangers could activate him Aug. 29, or wait a few days and bring him back when rosters expand Sept. 1. A Minor League rehabilitation assignment is probable, Washington said.
"We've got to get him on the bases first," Washington said. "Once we get him on the bases and make sure everything is well in that respect, then we've certainly got to get him out and get him playing."