Dodgers outfielder Matt Kemp confronted San Diego's Carlos Quentin, who charged the mound after he was hit by a Greinke pitch during the sixth inning, in an area leading to a parking garage at the stadium to question why he went after Greinke. Security and Padres pitcher Clayton Richard stepped in to break up the nose-to-nose exchange.
Kemp and Quentin were ejected after the teams' sixth-inning brawl on the field in the Dodgers' 3-2 victory that resulted in Greinke's injury.
Greinke, who joined the Dodgers this season as a free agent, could be out for two months. He was to be examined by doctors in Los Angeles on Friday.
With Greinke out, the Dodgers are contemplating his replacement in the rotation. One name mentioned Friday was left-hander Ted Lilly, who is set to come off the disabled list after rehabbing from September shoulder surgery. Lilly threw 90 pitches in a triple-A start on Wednesday.
The teams were awaiting word on Friday from the commissioner's office on possible suspensions, particularly for Quentin, who has a history of being hit by pitches and charging the mound.