"[Pitching coach Chuck Hernandez] was pleased, and I saw him throw flat ground and it looked good," Jennings said. "The ball was coming out nice. It's good to see."
Jennings added that Capps will throw another bullpen session and, if all goes as planned, he will soon begin a rehab stint with Class A Advanced Jupiter. In 31 innings this season, Capps is 1-0 with a 1.16 ERA.
Meanwhile, Jennings also reported that injured outfielder Giancarlo Stanton -- on the 15-day DL since June 27 with a broken bone in his left hand -- is making strides, although he's still not ready to face live pitching.
"He's progressing nice," Jennings said. "He'll continue to do baseball activities. It's just about when he gets the strength back in that hand and wrist. He has been in the cages and it feels good. He's starting to feel some strength come back."
Stanton was hitting .265 with 27 home runs and 67 RBIs at the time of the injury.
Steve Wilaj is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.