Ryne Nelson surrendered six runs in five innings Sunday in a no-decision against the Padres.

Nelson averaged 97.1 mph with his fastball today, up 1.2 mph from his season average, but in the thin air of Mexico City, he gave up two homers with a total of three men on base. This leaves him with a 7.71 ERA after six starts, which could put his rotation spot in jeopardy. Still, ERA estimators think he’s been unlucky, and it’s hard to see Brandon Pfaadt as a better bet. He should face the Cubs next weekend.