Collin Morikawa, a popular golfer who was expected to win the Players Championship, has withdrawn from the tournament after injuring his back during a practice swing. Morikawa had been a popular pick to win at TPC Sawgrass this weekend and was the highest-profile golfer to be the first round leader, finish in the top-five, and finish in top-10. His withdrawal has infuriated golf bettors, who had been anticipating his success this season.