Paulina Gretzky, left, follows her boyfriend Dustin Johnson during the final round of the Canadian Open golf tournament at Glen Abbey Golf Club in Oakville, Ontario, Sunday, July 28, 2013. (AP Photo/The Canadian Press, Aaron Lynett)

Photo by: Aaron Lynett

Paulina Gretzky, left, follows her boyfriend Dustin Johnson during the final round of the Canadian Open golf tournament at Glen Abbey Golf Club in Oakville, Ontario, Sunday, July 28, 2013. (AP Photo/The Canadian Press, Aaron Lynett)