NRL Betting Tip for Sunday 8th August 2021 August 6, 2021 Ray Walker Titans VS Cowboys Titans/Cowboys SGM - Stake 2 Units, Minimum Odds 2.9, Best Book - Topsport Check out all my NRL Tips: NRL Round 21 Same Game Multis. NRL Round 21 Best Bets. Learn more and get all of Caveman's Tips Here.