Apr 03, 2008 5:55 PM EST

Washington closer Chad Cordero could return to the field as soon as Sunday, according to the MLB.com.

After a cortisone shot and some arm exercises, Cordero has improved.

"Everything felt really good," Cordero said. "We'll see how it is [Friday]. Once I got loose after the first couple of throws, it was really good. I was doing my best to let it go."

Via MLB.com