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 win over the Philadelphia Phillies, twice with head-first 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.