San Diego Padres slugger Carlos Quentin rushed the mound after getting hit by a pitch.

Quentin wrestled Los Angeles Dodgers right-hander Zack Greinke to the ground, leading to a benches-clearing brawl between the teams that left Greinke with a broken left collarbone.

According to ESPN, Quentin started walking toward the mound, Greinke appeared to say something and Quentin then charged.

They dropped their shoulders and collided. Quentin tackled the pitcher and both ended up on the bottom of a huge pile of players from both sides. Greinke lowered his left (non-throwing) shoulder into Quentin and took the brunt of the blow as they collided.

Greinke left the Royals to join the Dodgers as a free agent in the offseason, signing a $147 million, six-year contract.