"A's manager Bob Melvin shuffled the team's rotation on Tuesday prior to the start of the A's nine-game homestand, paving the way for righty Rich Harden to make his first appearance of the season.

Melvin moved righty Guillermo Moscoso into the starting spot for Wednesday's game against the Marlins, relegating fellow rookie Graham Godfrey to bullpen duties. The shuffle means that righty Trevor Cahill's next start will be in Thursday's series finale, and it sets up Harden for his Oakland debut on Friday against Arizona.

Harden has been sidelined all season with a right lat muscle strain after signing a one-year, $1.5 million contract with the A's, but has made two rehab starts with Triple-A Sacramento in his quest to come back from the injury. During his time in Sacramento, he pitched 7 2/3 innings, allowing three runs with 12 strikeouts and three walks. "