Panthers' Joe Thornton undecided about his playing future
Joe Thornton Undecided About Playing 25th Season - RealGM Wiretap
Offseason Checklist: Detroit Red Wings
Florida Panthers' Joe Thornton undecided on return for 25th season - ESPN
Haven't put any thought into it - Joe Thornton undecided about return to 25th NHL season – FirstSportz
Panthers' Joe Thornton says he's undecided on playing future
Joe Thornton: Breaking News, Rumors & Highlights
Is This the End of Joe Thornton's NHL Career? - The Hockey News
2008-09 NHL season backgrounder