Clayton Richard dropped to 0-4 after giving up seven runs -- five earned -- in 3 2/3 innings Saturday against the Diamondbacks. This has to be the end for Richard in the rotation, at least for a little while. Given his $5.24 million salary, there's little doubt he'd clear waivers if the Padres wanted to send him down. He has an 8.54 ERA, a 2.05 WHIP and fewer strikeouts (13) than walks (17) in six starts this season. Robbie Erlin could get a chance to replace him.