Tiger Woods waves after a birdie on the 13th hole during the second round of the Bridgestone Invitational golf tournament Friday, Aug. 2, 2013 at Firestone Country Club in Akron, Ohio. Woods shot a 9-under par 61 to lead the tournament at 13-under par. (AP Photo/Mark Duncan)

Photo by: Mark Duncan

Tiger Woods waves after a birdie on the 13th hole during the second round of the Bridgestone Invitational golf tournament Friday, Aug. 2, 2013 at Firestone Country Club in Akron, Ohio. Woods shot a 9-under par 61 to lead the tournament at 13-under par. (AP Photo/Mark Duncan)