World ranking gap widens between US and Europe (The Associated Press)

FILE- In this April 10, 2016 file photo, defending champion Jordan Spieth, left, shakes hands with Masters champion Danny Willett, of England, following the final round of the Masters golf tournament in Augusta, Ga. After making a run at the Grand Slam in 2015, Spieth was cruising toward his second straight Masters title when he made the turn on the final day with a commanding five-stroke lead. The young Texan dunked two balls in the water at the par-3 12th for a quadruple bogey that handed the green jacket to England's Willett. (AP Photo/David J. Phillip, File) MoreThe European Tour is introducing the Rolex Series this year, which starts in late May with the BMW PGA Championship at Wentworth and ends in late November with the season-ending DP World Tour Championship in Dubai.

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