PHILADELPHIA (973espn.com) - The clock on Carson Wentz's 2018 season has already begun.

The Eagles' star quarterback undercent surgery for his torn ACL Wedneday, according to ESPN.

Pittsburgh-based orthopedist Dr. James Bradley, a team doctor with the Steelers, performed the surgery.

-John McMullen covers the Eagles and the NFL for 973espn.com. You can reach him at jmcmullen44@gmail.com or on Twitter @JFMcMullen