Ian Kennedy hit Greinke in the shoulder and was immediately thrown out along with his manager. Kennedy had hit Yasiel Puig in the face earlier in the game, so tensions were high. Greinke responded to Puig being hit by plunking Miguel Montero in the back, which led to the benches clearing, but no brawl. After being hit, Greinke stayed in the game and slid hard into Diamondbacks shortstop Didi Gregorius on the ensuing play, who was visibly annoyed about the play.
During the brawl, several punches were thrown and even Dodgers manager Don Mattingly got into an altercation with Diamondbacks coach Alan Trammell.
Puig also got involved in the fight, and he appeared to throw at least one punch at Diamondbacks players. Juan Uribe also was one of the instigators in the brawl.