Baker will start Saturday against the Diamondbacks, Dylan Hernandez of the Los Angeles Times reports. Carlos Frias will get the nod Friday in place of Brandon McCarthy (elbow), with Baker to follow in the No. 5 starter role. Baker was excellent in his first three starts for Triple-A Oklahoma City this season, posting a 1.06 ERA, 0.65 WHIP and 16:1 K:BB, but he has a 4.24 ERA and 1.2 HR/9 in parts of 10 seasons at the major league level. He's merely a stop-gap for Los Angeles.