WASHINGTON _ Phillies catcher Carlos Ruiz, who suffered a right hamstring strain in last Sunday's 3-2 win over the Cincinnati Reds, is pleased with the early stages of his recovery.

Ruiz is expected to miss three to four weeks. He is with the team, participating in pregame stretching. On Friday he took a few swings in the batting cage with trainer Scott Sheridan watching.

"I feel good and have been feeling better each day," Ruiz said before Saturday's game against the Washington Nationals at Nationals Park. "But I also want to be careful and not do too much."

Ruiz, who hit .323 (10 for 31) in the 10 games leading up to his injury, won't say when he thinks he can return, but he's just hoping to move on with no setbacks.

"So far I am happy with how things have gone," he said.

OK after collision

Erik Kratz said he had some bumps and bruises, but they weren't related to being run over at home plate Friday by the Nationals' Tyler Moore. Kratz took a throw from centerfield Ben Revere and held on to the ball when the Nationals outfielder barreled into him.

Kratz, who was in the lineup Saturday, said he had two bruises on the inside of his leg.

"But they weren't related to the play," Kratz said.

It was a meeting of two big athletes. Kratz is listed as 6-foot-4 and 255 pounds, while Moore is 6-2 and 220 pounds.

"It doesn't matter how big the runner is, he is running and has the upper hand," Kratz said. "It's a matter of catching the ball and trying to hang on."

Adams ready to return

Mike Adams will be activated Sunday from the disabled list, as the Phillies optioned relief pitcher B.J. Rosenberg to Lehigh Valley after Saturday's game. Pitching coach Rich Dubee was asked if he will ease Adams back into his eighth-inning role.

"We will just have to see," Dubee said.

Adams hasn't pitched since May 10, two days before suffering his injury while shagging fly balls during batting practice in Arizona.