As expected, Dodgers starting pitcher Clayton Kershaw will begin a minor-league rehab assignment Friday, as he continues to recover from a back injury.

Kershaw is expected to start for Class A Rancho Cucamonga, and will likely throw between 50-55 pitches in his first action, according to the Orange County Register. He will need to make at least one more start beyond that, though it is isn't yet clear just how quickly Kershaw's rehabilitation will move.