Dou's game swinging into form

PGA Tour rookie has sights set on retaining card for next season

China's "Marty" Dou Zecheng hopes a recent decision to hook up with Jordan Spieth's swing guru will help salvage a frustrating rookie campaign and make it a summer to remember on the PGA Tour.

After struggling to find his best form for much of the season, the 21-year-old from Henan recently turned to Cameron McCormick to help him make a late bid to retain his Tour card.