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8/17/2013 7:08 P.M. ET

Kemp likely out until September

PHILADELPHIA -- Matt Kemp continues to make progress in his recovery from a sprained left ankle, but a return isn't likely until rosters expand on Sept. 1.

"He's doing more and bouncing back," manager Don Mattingly said of Kemp, who has been out since July 22 and has missed 60 of 122 games this year over three stints on the disabled list.

"He's got to be able to run, to cut, to stop and start. He's doing more all the time. [Medical director] Stan [Conte] said he's 75 percent running. He's going in the right direction. I saw him jump rope today. He's doing more stuff. He's at the point with the ankle where it takes a while."

Mattingly added the medical department hasn't talked about a rehab assignment, "so that's still a ways away."

The Minor League season concludes on Sept. 2.

Wilson rarin' to go, but Dodgers hesitant

PHILADELPHIA -- Reliever Brian Wilson exited Friday's simulated game in good shape, but manager Don Mattingly remains noncommittal about when the former Giants closer will be activated off the disabled list.

The club's hesitancy is understandable. Activating Wilson will require a difficult roster move unless somebody gets hurt, and the Dodgers' bullpen has been pretty much untouchable lately.

But Wilson is itching to get back into battle, and his skipper seems eager to comply.

"I don't think he'll throw another sim game," said Mattingly. "He's all gamed out. We've pretty much crossed off everything he's been asked to do. We're getting there. We'll let you know.

"We're talking about spreading the workload out and he's another power arm, whenever we activate him. The whole bullpen has been good. It's not like somebody there is killing us."

Rosters don't expand for another two weeks. Mattingly said that the club could go with eight relievers and move a position player. The obvious candidate in that scenario is Scott Van Slyke, who has been called up four times this year, but the club needs to be satisfied that Andre Ethier's sore calf muscle is healed.

"It's fluid," said Mattingly. "We'll wait till that day. Injury-wise, it could make the decision for you, if you get a position player banged up."

The two relievers the Dodgers have options on, Paco Rodriguez and Chris Withrow, are being used in important roles during the team's hot streak. There's no indication that management is considering giving Rodriguez a rest, even though he's on pace for the heaviest workload of his young career.

Mattingly explains decision to go with Jansen

PHILADELPHIA -- Officially, a three-run lead is needed for a reliever to be credited with a save, but that's not how Don Mattingly is managing the Dodgers.

On Friday night, with a four-run lead and Brandon League warmed up in the bullpen, Mattingly still went with closer Kenley Jansen for the last three outs of a 4-0 win over the Phillies at Citizens Bank Park.

"You don't want the game to get away in a ballpark like this," said Mattingly. "In the ninth inning, with four runs, if you're sixth in the order, you can't let the first guys get on or it rolls around to [Chase Utley], and you don't want them to get a fifth time in this park. You can't let it get started. Stop it right now."

Mattingly said that his decision was influenced by some scoreboard watching, seeing at the time that second-place Arizona was headed toward a defeat.

"There was another game for us on the board, a game to pick up, and we knew it," he said. "You don't want to take a chance."

Mattingly originally warmed up only Jansen during the top of the ninth inning, then the Dodgers scored a fourth run. He would have gone to League had the lead been extended to five runs.

"It depends on our usage, and if we've used Kenley three straight games, you can't do that," he said. "It depends where you're at and who's behind him."

Nolasco named after father's favorite, Monday

PHILADELPHIA -- Some people are named after relatives. Some are named after rock stars or presidents.

But Carlos Enrique Nolasco goes by the first name "Ricky" because his father named his son after his favorite Dodger, current broadcaster Rick Monday.

"So when I got traded to the Dodgers, my dad got all crazy," said Nolasco, who starts for Los Angeles on Sunday. "It was kind of surreal. And cool. My first day with the team, I got interviewed by Rick, and I sent my dad pictures. He was excited. My dad always talked about Rick Monday."

Nolasco, who grew up an hour from Dodger Stadium in Rialto, has set up a meeting between his father and Monday when the team returns for its next homestand.

Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.