College superstar Jackson Koivun insists he feels "comfortable" making his first start in what many believe will be a stellar professional career - as he achieves his dream of joining the PGA Tour.
It's only natural for amateurs to be nervous on their professional debuts - but despite being just 21 Koivun is no ordinary amateur as one of the best college players of all time, who has already mixed it successully with the big boys.
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