Chicago White Sox pitcher James Shields was activated from the disabled list and started Sunday's game against the Toronto Blue Jays.
He gave up seven hits and three earned runs in 5 2/3 innings.
Shields, 35, has missed the past two months because of a strained right back muscle. The veteran right-hander said Wednesday he is "ready to rock" after three rehab starts for Triple-A Charlotte. He threw 90 pitches, allowing two runs and six hits over five innings, on Tuesday.
Shields was 1-0 with a 1.62 ERA in three starts this season, going into Sunday.