New York Mets right-handed pitcher Rick Aguilera will undergo arthroscopic surgery Wednesday to repair sprained ligaments in his right elbow and is expected to miss six to eight weeks, the National League club announced Monday.

Aguilera, 0-4 with an 8.41 ERA, is suffering from capsulitis of the right elbow. Mets team physician Dr. James Parks will perform the surgery at Roosevelt Hospital.Aguilera, a former Brigham Young University pitcher, first suffered a slight irritation in his right elbow last season and spent much of the year on the disabled list. He was slated to be the fifth starter for the Mets, who have benefited from the emergence of All-Star Dave Cone.

To replace Aguilera on the roster, New York signed left-hander Bob McClure. The 35-year-old McClure, is 1-3 with a 6.16 ERA and two saves in 19 games.