Max Homa gets his Players Championship off to a flying start with this eagle from the fairway at Hole 10. (0:22) PONTE VEDRA BEACH, Fla. -- Collin Morikawa withdrew from the Players Championship early Thursday morning with a back injury. The two-time major winner and winner of the Pebble Beach Pro-Am this season had played only one hole in his opening round when he took a full-speed practice swing on the 11th tee and backed off. "I felt fine in warm-up. Like no signs of back problems. And teed it up on 11, and took one practice swing, and I just knew it was gone," Morikawa said. "Like I just had the feeling before when it's happened. And I just, I can't swing through it. Trust me, I would play if I could. It's just the worst thing in the world." Morikawa, who was one of the favorites at TPC Sawgrass this week, reached for his back and grimaced before calling for a trainer. He spent some time assessing his status before being carted off the golf course and officially withdrawing from the tournament.…