Zack Greinke got the worst of it physically when he brawked with Carlos Quentin last month. (Lenny Ignelzi / Associated Press)

About three weeks ahead of schedule, Zack Greinke will return to the mound for the Los Angeles Dodgers tonight against the Washington Nationals.

Greinke, the team’s $147-million free agent addition, was expected to need two months to recover from the broken left clavicle he suffered April 11 in a brawl with Carlos Quentin. The right-hander will have to be somewhat careful, though.

“I know they don’t want me running into people,” Greinke said (via the Los Angeles Times), “but it’s not a common thing that you run into someone.”

Well, no…other than that night last month when he lowered his shoulder against a player charging the mound. Greinke kept his pitching arm in shape as his left arm healed and he made one start in the minors, giving up six hits and three earned runs in 4 1/3 innings. He has 147 million reasons to feel somewhat guilty about missing time, so ready or not, he’ll pitch. And try to avoid collisions.

“I don’t know how long it will take to be 100 percent crisp,” he said, “but I feel good. There’s nothing holding me back. So I’m ready to pitch.”

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