TUF Brazil winner Leonardo Santos announces retirement following UFC 278 loss to Jared Gordon

The Ultimate Fighter: Brazil 2 welterweight winner Leonardo Santos has retired from MMA following a decision defeat to Jared Gordon at UFC 278 on Aug. 20, he announced Thursday night on social media. Santos leaves the sport on a three-fight skid to Grant Dawson, Clay Guida and Gordon, bringing his professional record to 18-6-1. At one point during his UFC…