James Shields scheduled to start Sunday for White Sox

CHICAGO -- James Shields is ready to return to the Chicago White Sox's rotation.

The 35-year-old right-hander is scheduled to start Sunday at Toronto after being sidelined the past two months because of a strained right back muscle.

Shields said Wednesday he feels "pretty good" and 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.

Sidelined since April 16, Shields is 1-0 with a 1.62 ERA in three starts after a rough first season in Chicago.