Callaway has announced that Tom Watson and Marc Leishman have joined its Golf's Tour staff after agreeing multiyear deals with the California-based equipment manufacturer. The financial terms of the deals were not disclosed. Watson, 66, who joins Callaway after spending 15 years with Adams Golf, is widely considered as one of the greatest golfers ever. His career has featured 39 PGA Tour wins, and he has been named Player of the Year six times, among other achievements. In 1988 he was enshrined in the World Golf Hall of Fame. He is currently ranked 26th in the Official World Golf Rankings. Leishman, who has joined Callaway as a Staff Pro, had a successful 2015 that included a runner-up finish at the Open Championship, and in November he won the Nedbank Challenge. Leishman started 2016 as the 26th ranked golf player in the world.