Wheeler was diagnosed with venous thoracic outlet syndrome, and will undergo surgery after having a blood clot removed in his right arm. The expected recovery time is six to eight months.

Phillies ace right-hander Zack Wheeler is out for the rest of the season, the team announced Saturday. Wheeler, 35, has been diagnosed with venous thoracic outlet syndrome (TOS), and the recommendation was to undergo thoracic outlet decompression surgery in the coming weeks. Such a procedure typically has a recovery time of six to eight months.

The left-hander struck out 12 in 6 1/3 dominant innings Tuesday in a win over the Seattle Mariners. He allowed two runs - one was inherited - and his season ERA is now 2.46, Incredibly, he threw 26 of 27 first-pitch strikes. Sanchez left the field to a standing ovation.