Mets starters Johan Santana and Oliver Perez will each undergo their respective surgeries on Tuesday, the Mets announced Monday.

The operations will be performed at the Hospital for Special Surgery in Manhattan. The team's medical director, Dr. David Altchek, and physician, Dr. Struan Coleman, will perform both procedures.

Santana will have bone chips removed from his left elbow, while Perez will have scar tissue removed from the patella tendon of his left knee.

The two left-handers are out for the year, and both are expected to be ready for Spring Training next season.

Santana, 30, went 13-9 with a 3.13 ERA in 25 starts for the Mets this season and hasn't pitched since Aug. 20. The 28-year-old Perez, who last pitched Aug. 23, went 3-4 with a 6.82 ERA in 14 starts for New York this season.

Santana has four guaranteed years left on his contract and is owed $21 million next year. Perez has two years left at $12 million each.