Article Photos: Bull riding: Norman native Sean Willingham wins WinStar Invitational

Sean Willingham rides Bring It On to an 87.5 during the WinStar World Casino Invitational PBR bull riding event at Chesapeake Energy Arena in Oklahoma City, Friday, Jan. 25, 2013. Photo by Nate Billings, The Oklahoman

Sean Willingham rides Bring It On to an 87.5 during the WinStar World Casino Invitational PBR bull riding event at Chesapeake Energy Arena in Oklahoma City, Friday, Jan. 25, 2013. Photo by Nate Billings, The Oklahoman