Louis Oosthuizen promised to “play his heart out” in pursuit of a second British Open title as he headed into Sunday’s final round with a one-shot lead.
The South African’s third-round 69 at Royal St George’s on Saturday left him with a slender advantage over tournament debutant Collin Morikawa.
Oosthuizen’s 2010 Open triumph at St Andrews remains his only major title, with the 38-year-old having since had six runners-up finishes in the sport’s most prestigious events.
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Two of those came this year, with Oosthuizen second to Jon Rahm at last month’s US Open and joint runner-up behind Phil Mickelson at the US PGA in…
