NRL Betting Tip for Sunday 18th July 2021 July 17, 2021 Ray Walker Warriors VS Panthers Panthers SGM - Stake 1.5 Units, Minimum Odds 3.7, Best Book - Lads/Neds Check out all my NRL Tips: NRL Round 18 Same Game Multis. NRL Round 18 Best Bets. Learn more and get all of Caveman's Tips Here.