Defending champ Scheffler three back after tough day at Augusta

"It contributed a little bit," the world number one said after firing a one-under par 71 that left him three strokes behind leader Justin Rose going into Saturday's third round. "I definitely could have been a bit sharper on the back nine," Scheffler said. "Just a few too many mistakes. "But overall I did enough to stay in the tournament. Three shots back going into the weekend, it was very challenging out there on the back nine, so I took advantage of my opportunities, and hopefully I'll clean...