Bryce Harper is still feeling the effects of his collision with the Dodger Stadium wall, enough for manager Davey Johnson to consider resting...

WASHINGTON — Bryce Harper is still feeling the effects of his collision with the Dodger Stadium wall, enough for manager Davey Johnson to consider resting the Washington Nationals outfielder for a few games.

Harper aggravated his sore left knee three times in Sunday’s 6-1 victory over the Philadelphia Phillies, twice with headfirst slides in the first inning. He slid into second on an infield hit-and-error, then hit the dirt again with a steal of third.

For good measure, he then fouled a pitch off the knee in the third inning. He was limping throughout the game and was removed for a pinch runner after drawing a walk in the seventh.

“If he’d quit headfirst sliding, he’d be a lot better off,” Johnson said. “He’ll probably be down a few days. I don’t know if there’s fluid on the knee or what, but he was certainly gimpy.”

Harper, however, quickly answered “no” when asked if he expected to miss any playing time.

“It probably won’t get better until the offseason,” he said. “I’ve just got to deal with the pain. … I could rest it for four days and feel better and I could go out there and slide and bang it up again — and back to square one.”

Notes

• Boston right-hander Clay Buchholz was scratched from his scheduled start against Philadelphia because of irritation in his collarbone area. The 28-year old right-hander said it was his choice not to make his Monday start due to the discomfort.

• Arizona right-hander Ian Kennedy will miss his next start after cutting his right index finger while doing the dishes this week. Kennedy was scheduled to start one of the games in Monday’s doubleheader against Texas. Tyler Skaggs will replace Kennedy. Trevor Cahill will pitch the second game in the first scheduled doubleheader in Chase Field history.