ST ANDREWS, Scotland, July 18 (Reuters) - American Jordan Spieth believes he will have to shoot 10-under par for his last two rounds at windswept St Andrews to keep his British Open hopes alive.
The 21-year-old Texan, attempting to become the first player since Ben Hogan in 1953 to win the year's first three majors, is five shots behind compatriot Dustin Johnson on five-under after a level-par 72 second round that took more than 24 hours to complete.
"I believe I'm still in contention. I still believe I can win this tournament," Spieth told reporters on Saturday after a trying and sometimes tetchy day that began with a 4.