Kansas City native Tom Watson says he will play in the PGA Senior Tour event in St. Louis this summer. Boone Valley Golf Club will host the seniors the week of May 22nd. Watson has become one of the marquee names on the Senior Tour since turning 50 last September. He has made only six senior appearances so far. Watson has won eight majors and 34 tournaments in his pro career. St. Louis native Hale Irwin will also play at Boone Valley. He won there last year.