U.S. Open champion Graeme McDowell plans to take up PGA Tour card in 2011 . McDowell, who won the British Open last month, has been playing on tour since 2002 and is ranked No. 1 by world golfers. World No . 2 Westwood can topple top-ranked Tiger Woods this weekend . Another Ryder Cup winner , Rory McIlroy , plans to reduce his playing schedule next year .
U.S. Open champion Graeme McDowell plans to take up PGA Tour card in 2011 . McDowell 's Ryder Cup teammate Lee Westwood will stay on European Tour . World No . 2 Westwood can topple top-ranked Tiger Woods this weekend . Another Ryder Cup winner , Rory McIlroy , plans to reduce his playing schedule next year .