Cubs' Guzman tears shoulder ligament

Cubs officials said an MRI exam performed Friday revealed the "significant" injury after Guzman told trainers he was feeling discomfort. Guzman, who was recovering from arthroscopic knee surgery, had not yet appeared in a spring training game.

Guzman, 28, is considered a key piece of Chicago's bullpen after appearing last year in a career-high 55 games, when he posted a 3-3 record and 2.95 earned run average over 61 innings. During that span, he struck out 47 and issued 23 walks.

He was pulled from bullpen in late September after complaining of soreness in the area of his right armpit.

Guzman sports a 3-10 lifetime record with a 4.82 ERA over parts of four seasons for the Cubs.

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