LeBron James aggravated a right groin injury in the first quarter of the Los Angeles Lakers' 111-106 loss Wednesday and could be forced to miss some time, ESPN reported Thursday. James said he was kneed in the groin when taking a charge from the Clippers' Patrick Beverley and said that "kind of set me right back to where I was five days ago." He missed the Lakers' game on Sunday, a loss to Denver, because of the a thoracic muscle strain, which affects the ribs, and lingering discomfort in his right groin.