Hammel announced Saturday that he will retire from professional baseball, Jeff Wilson of the Fort Worth Star-Telegram reports.

Hammel was told Friday he'd made the Rangers' Opening Day roster, Levi Weaver of The Athletic reports.

Hammel said he will not go to the minors if he doesn't make the Rangers' roster, Evan Grant of the Dallas Morning News reports. "I certainly won't go to Triple-A," Hammel said after firing four scoreless innings Friday. "This is a grind. If it requires me to go home, I know my family is waiting for me and has been for a while. I'm more than willing to go home and spend time with them."

Hammel made his debut for the Rangers, throwing two scoreless innings in Tuesday's game against Oakland.