Bubba Watson and Louis Oosthuizen will need at least an extra hole to determine who will win the 2012 Masters and wear the green jacket as he leaves Augusta National on Sunday.
Oosthuizen grabbed the lead early in his fourth round with an epic 'albatross' on the second hole. Watson would catch up at the 16th hole by putting for his fourth straight birdie. Both finished 72 holes at 10-under.
The final pairing of Phil Mickelson and Peter Hanson remained close but could not pull even, both finished at 8-under, tying Lee Westwood for third place.