Sonny Gray has been diagnosed with a torn UCL in his left thumb and will undergo surgery.
Sonny Gray (fractured left thumb) could have pitched in the American League Championship if the A's had advanced.
X-rays on Sonny Gray's left thumb have revealed a fracture.
Sonny Gray was charged with three runs on six hits and four walks over just five frames in Thursday's loss to the Tigers.
Sonny Gray will start Game 5 of the ALDS for the Athletics on Thursday.
Sonny Gray threw eight scoreless innings against the Tigers on Saturday, settling for a no-decision.
Sonny Gray fanned eight over five scoreless innings in Sunday's victory over the Mariners in the A's regular season finale.
Sonny Gray struggled against the Twins on Sunday, but still walked away with his third victory of the season despite allowing four runs on seven hits over his five innings of work.
Sonny Gray allowed only one run on five hits over six innings in a no-decision against the Angels on Tuesday.
Sonny Gray allowed two runs over five innings in a win over the Twins on Wednesday.
Sonny Gray surrendered three runs -- two earned -- on seven hits over eight innings in a loss Thursday to the Astros.
Sonny Gray was blasted for six runs on eight hits over just 3 1/3 innings in Sunday's loss to the Orioles.
Sonny Gray yielded two runs on just two hits over seven innings of a no-decision Tuesday versus the Mariners.
Sonny Gray befuddled the Astros Thursday, holding them to just four hits while striking out nine over eight scoreless frames in a 5-0 victory.