Wang missed the entire 2010 season because of right shoulder problems. After he was non-tendered, Wang re-signed with Washington last month. He will be one of eight starters competing for a spot in the rotation.
The Nationals are hoping that Wang, who is working out in Arizona, will be the pitcher who won a combined 38 games for the Yankees in 2006 and '07.
"He is coming in at the beginning of Spring Training. He is throwing off the mound, working out," Rizzo said. "He is throwing as we speak. He is not in rehabilitation mode right now. He is in preparation mode for Spring Training."