Top amateur isn't one any longer

Promising American talent Patrick Cantlay formally announced his long anticipated decision to turn professional on Tuesday, just two days after tying for 41st place at the US Open in San Francisco.

The 20-year-old, who was awarded the 2011 Mark H. McCormack Medal as the world's No 1 amateur, will make his first appearance as a pro at this week's Travelers Championship in Cromwell, Connecticut.

Cantlay, who has recorded four top-25 finishes in eight appearances on the US PGA Tour, signed with the same agent who represents Tiger Woods - Mark Steinberg of Excel Sports Management.