Masters champ Charl Schwartzel commits to playing Canadian Open

Masters champion Charl Schwartzel, British Open champion Louis Oosthuizen and three-time major winner Ernie Els.How's that for a South African threesome?It's an intriguing trio that organizers of the RBC Canadian Open might want to throw together in the same group at this summer's tournament at Shaughnessy Golf & Country Club.We have known for quite some time that Els will be playing at