(Source: NTRA - National Thoroughbred Racing Association) Defending champion Matt Bernier of Daily Racing Form and NBC Sports tops a field of more than 40 celebrities and media types invited to compete in Saturday's third annual Tito's $10,000 Charity Challenge to benefit Old Friends, Thoroughbred Aftercare Alliance and nonprofit causes to be selected by both the winner and Tito's. The invitation-only online tournament is held on Day 2 of the three-day Daily Racing Form/NTRA National Handicapping Championship Presented by Racetrack Television Network and Treasure Island Las Vegas. Bob Neumeier of NBC...