Funkhouser (shoulder) threw to live hitters Saturday, Shawn McFarland of the Dallas Morning News reports.
Funkhouser signed a minor-league contract with the Rangers on Thursday, Robert Murray of FanSided.com reports.
The Tigers declined to tender Funkhouser (shoulder) a contract for 2023.
Funkhouser (shoulder) was designated for assignment by the Tigers on Tuesday.
Funkhouser remains in the pre-throwing phase of his rehab program for the right shoulder surgery he underwent in late July, Evan Petzold of the Detroit Free Press reports.
Tigers manager A.J. Hinch confirmed Wednesday that Funkhouser will undergo season-ending surgery on his right shoulder, Evan Woodbery of MLive.com reports.
Funkhouser may need shoulder surgery and will not pitch this season, Chris McCosky of The Detroit News reports.
Funkhouser (shoulder) had his throwing program shut down recently, Chris McCosky of The Detroit News reports.
Funkhouser (shoulder) threw off a mound Friday, Joey Pollizze of MLB.com reports.
Funkhouser (shoulder) will throw a bullpen session sometime next week, Chris McCosky of The Detroit News reports.