"We wanted to see if Rios could play defense," manager Ron Washington said. "We made it known to him, don't start something you can't finish."
Rios, who originally sustained the injury in the second game after the All-Star break, said he was good enough all the ankle continues to bother him.
"I'll have to deal with a little bit of pain but hopefully it won't affect my performance," Rios said. "I'm good enough to be playing tonight."
T.R. Sullivan is a reporter for MLB.com Read his blog, Postcards from Elysian Fields and follow him on Twitter @Sullivan_Ranger. This story was not subject to the approval of Major League Baseball or its clubs.