Tolleson (elbow) underwent Tommy John surgery Wednesday and will miss the remainder of the 2017 season, Marc Topkin of Tampa Bay Times reports.
Tolleson's season has been a train wreck after signing with Tampa Bay over the offseason. He started the year on the 60-day disabled list due to recurring back spasms, and this just closes the door on what will become a lost season. The former closer will now focus on rehabbing his arm with the hope of returning to action sometime during the summer of 2018.