Werth, who suffered the injury while sliding to catch a fly ball in Philadelphia on May 6, has been targeting a return date in the first week of August, if not sooner. The Nats' right fielder was shagging fly balls during batting practice during the weeks leading up to the All-Star break, and is expected to begin swinging the bat shortly.
"Jayson Werth is progressing really good," Johnson said, adding that he would have more finalized information on Wednesday. "The chances of him reinjuring the bone that was broken, unless some catastrophe happens, that's not going to happen. It's probably going to be stronger than his other wrist, with the procedure that he had."
In 27 games before the injury, Werth batted .276 with a .810 OPS, three home runs and 12 RBIs in 98 at-bats.
The Nationals host one of Werth's former teams, the Phillies for a three-game series beginning July 31.