Dodgers' Walker Buehler: Beginning assignment Sunday

Buehler (elbow) will start for Triple-A Oklahoma City on Sunday, Matthew Moreno of DodgerBlue.com reports.

Buehler pitched four innings during a simulated game to conclude spring training, and the expectation is that he'll throw another four-to-five frames in his first rehab start. Manager Dave Roberts said Friday that the right-hander will likely make four rehab starts in the minors. Assuming he receives the usual rest period between each start, that would put him on pace to return to the Dodgers on April 20.