Sahalee, a tree-lined course in the Seattle suburbs, hosted the 1998 PGA Championship won by Vijay Singh and a World Golf Championship in 2002 won by Craig Parry.
It was supposed to hold the 2010 PGA Championship, but the PGA of America took it away and awarded that major to Whistling Straits as part of a long-term deal that included a Ryder Cup.
Instead, Sahalee officials went after the U.S. Senior Open, the top event for 50-and-older players.
Couples, a former Masters champion and one of the most popular players in golf, grew up in Seattle. He will turn 50 in October 2009, and will be eligible for the Champions Tour for the first time in 2010.
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