Quick take: Dodgers 3, Padres 2

The Los Angeles Dodgers may have answered a few questions about team chemistry Thursday night, but they raised a bigger one when the team announced it has lost starting pitcher Zack Greinke to a fractured collarbone.

The injury came about during a fight with San Diego Padres outfielder Carlos Quentin in the sixth inning of the Dodgers' 3-2 win at Petco Park.

The tussle began when Greinke hit Quentin with a pitch in the sixth inning. That seemed to be in retaliation for a pitch San Diego starter Jason Marquis sailed up around the head of Matt Kemp earlier in the game, but might also have stemmed from a personal grudge between the two players.

Quentin took a couple of steps toward Greinke, then charged full-steam toward the mound. He and Greinke collided shoulder-first and bounced apart. Quentin wrestled Greinke to the ground. Afterward, Greinke was escorted off the field by trainer Sue Falsone. The umpires allowed Chris Capuano as many warmup pitches as he needed, indicating Greinke exited with an injury rather than after an ejection.

The Dodgers signed Greinke to a then-record six-year, $147 million contract in December.

As the rest of the players poured onto the field from the dugouts and bullpens, Matt Kemp came charging in from center field. At one point, he appeared to be mouthing, "Don't touch me!" to Padres manager Bud Black, who was pulling players away from one other.

A second dust-up erupted when Jerry Hairston Jr. charged toward the Padres' dugout. Legendary Dodgers broadcaster Vin Scully paraphrased Kemp this time as saying, "That's fertilizer! That's fertilizer!" Josh Beckett restrained Kemp.

Kemp, Quentin and Hairston were all ejected. The Padres visit Dodger Stadium on Monday night.

Quentin and Greinke have a history that goes back at least four years, to when Greinke was with the Kansas City Royals and Quentin was with the Chicago White Sox. In an April 9, 2009 game, Greinke threw two pitches well inside to Quentin, one of which hit him. Quentin took a couple of steps toward the mound before being restrained.

According to ESPN Stats and Info, Quentin is the only player in the majors Greinke has hit with a pitch three times.

Quentin has been hit with pitches 116 times in his career and led the league in that department each of the past two seasons. One of those times was Tuesday night, when Dodgers reliever Ronald Belisario tagged him.

Juan Uribe, much-maligned the past two, hit the go-ahead, eighth-inning home run for the Dodgers in an emotionally charged game.

The Dodgers continued to struggle trying to hit in the clutch. They went 0-for-4 with runners in scoring position. Adrian Gonzalez accounted for their only early scoring with a two-run home run in the first inning.

Kenley Jansen, filling in for Brandon League, who had to throw 34 pitches Wednesday, dominated the ninth inning for his first save of the season.