Golf : Day and Casey trail 2nd round leader Sucher by 4 strokes at PGA's Travelers Championship

Zack Sucher shot a 65 Friday to take a two-stroke lead midway through the second round of the Travelers Championship. Chez Reavie and Keegan Bradley are two shots back at 9-under par. Jason Day (63) and Paul Casey (68) are in a large group of players four strokes back at 7-under. Defending champion Bubba Watson (66) is six shots back.