Phil Mickelson watches his tee shot on the 14th hole during the second round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Friday, May 2, 2014. (AP Photo/Chuck Burton)
Phil Mickelson prepares to his his tee shot on the 13th hole during the second round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Friday, May 2, 2014. (AP Photo/Chuck Burton)
Justin Rose, of England, reacts after his approach shot on the 10th hole during the second round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Friday, May 2, 2014. (AP Photo/Nell Redmond)
Martin Flores watches his tee shot on the fifth hole during the second round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Friday, May 2, 2014. (AP Photo/Nell Redmond)
Martin Flores watches his putt on the fifth hole during the second round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Friday, May 2, 2014. (AP Photo/Nell Redmond)