John Cook

Born: October 2, 1957

Birthplace: Toledo, Ohio

Age: 50

Residence: Windermere, Fla.

College: Ohio State

Turned pro: 1979

Player notes: Making his U.S. Senior Open debut after posting 11 PGA Tour victories…In first full year on Champions Tour, owns nine top-10 finishes…Captured 1978 U.S. Amateur title, beating Scott Hoch in the final…Competed on 1978 USA World Amateur Team and 1993 U.S. Ryder Cup team…Three-time All-American at Ohio State and member of 1979 NCAA Division I national championship team…Member of Ohio State University Hall of Fame…Was persuaded by Jack Nicklaus and Tom Weiskopf to attend Ohio State, even though he grew up in southern California…Father, Jim, was a longtime tournament director for the PGA Tour…Son Jason plays golf at Pepperdine University…Runner-up at 1992 British Open and tied for second at ’92 PGA Championship.