Syndergaard (finger) will soon head out on a minor-league rehab assignment, Bill Plunkett of The Orange County Register reports.

Syndergaard passed his final side-work test Friday afternoon at Dodger Stadium with a successful three-inning simulated game. Out since early June with a finger blister, not to mention a 7.16 ERA, he'll have to show encouraging results on his rehab stint in order to earn another chance in the Los Angeles rotation.