Tyler Thornburg to undergo season-ending surgery for thoracic outlet syndrome

Stacy Revere/Getty Images
8 Comments

Red Sox reliever Tyler Thornburg will undergo season-ending surgery for thoracic outlet syndrome on Friday, Evan Drellich of CSN New England reports.

Thornburg, 28, never pitched in a Red Sox uniform since the club acquired him from the Brewers in December. He started developing arm issues early in spring training and never recovered.

Across parts of five seasons in the majors, Thornburg has a career 2.87 ERA with a 220/91 K/BB ratio in 219 2/3 innings. He was particularly impressive last season, when he saved 13 games and struck out 90 batters with a 2.15 ERA for the Brewers.