"Mets relief pitcher J.J. Putz is expected to be out 8 to 10 weeks following surgery to remove a bone spur in his pitching elbow.

Several baseball sources say Putz will undergo surgery on Tuesday. The surgery will be performed by Dr. David Altchek, the Mets' medical director.

The 32-year-old righthander, acquired in an offseason trade with Seattle, told reporters that his elbow "hurt like hell" following through on his pitches in Pittsburgh on Wednesday.

Putz had lost velocity and the ability to throw his split-fingered fastball due to the bone spur. He is 1-4 with a 5.22 earned run average in 29 games."