Yamamoto (triceps) allowed one run and struck out two over two innings in his first rehab start with Triple-A Oklahoma City on Wednesday.
Yamamoto surrendered a solo home run but nothing else, throwing 31 pitches over his two frames. The righty's velocity was down across the board, although that's not necessarily surprising for his first start in more than two months. The plan is for Yamamoto to make a couple more rehab starts before rejoining the Dodgers' rotation in mid-September.