Burdi (elbow) underwent successful Tommy John surgery Wednesday, Devan Fink of Cover Those Bases reports.
Burdi will hopefully return to the mound sometime in the middle of the 2018 season. The 24-year-old will look to build on the success he was having at Double-A Chattanooga in 2017 (0.53 ERA and 20:4 K:BB through 17 innings) when he returns to the mound .