Rangers and Celtic players were involved in a heated brawl following their 3-3 Old Firm derby draw on Sunday. The Gers trailed 2-0 and 3-2 but came back to earn a point and boost their chances of winning the Scottish Premiership title. After the final whistle was blown at Ibrox, however, tempers boiled over. Todd Cantwell appeared to push Celtic star Callum McGregor, with other players joining the fray before being separated. Fortunately the incident didn’t last long and Cantwell joined his Rangers team-mates minutes later to thank the crowd for their support during the high-octane contest. Th…