Arlington, TX -- (Sports Network) - The Oakland Athletics activated oft-injured pitcher Rich Harden from the 15-day disabled list Sunday, in time to start the team's series finale with the Texas Rangers.

Harden was roughed up by Texas lasting only 3 2/3 innings and giving up five runs on eight hits and four walks. He struck out five.

The 26-year-old remained at 1-0 with the no decision and his earned run average climbed from 0.82 to 3.68 with the start in three games this season.

Harden was placed on the DL for the sixth time in the last four years in early April with a strained right shoulder.

He was sidelined with a similar injury for most of the 2007 campaign, appearing in only seven games.

To make room for Harden on the roster, the A's placed outfielder Chris Denorfia on the 15-day DL, retroactive to May 7, with tightness in his lower back.