British and Irish Lions urged to muscle up if they are to beat the Wallabies ONLY an urgent return to Monster-ball in the centres can revive a worried British and Irish Lions outfit which has been exposed for its popgun try-power when it really counts. Not only are the Lions reeling from skipper Sam Warburton (hamstring) being ruled of Saturday night's titanic series-decider against the Wallabies in Sydney but they will head into this history-changing gunfight with serious blanks in several barrels. The Lions have not scored a try in the final 20 minutes of their four biggest matches on tour. As much power and panache as the tourists have poured into 32 wonderful tries on Australian soil, it disguises being found wanting in the championship minutes. Lions coach Warren Gatland must be fretting over just how to find a knockout punch from his men late in games when this series will be settled by just such an act. The Wallabies have outscored the Lions 6-3 and 7-3 in the final 20 minutes of the two Tests. The Queensland Reds were beaten but were still 5-3 to the good in the final 20 while the tourists could only make 3-0 headway in the closing quarter when they were upset by the ACT Brumbies. Giant centre Jamie Roberts of the Lions during the match between the NSW Waratahs and the British & Irish Lions at Allianz Stadium. That's four paltry penalty goals from four final 20s for the Lions regardless of how stout their own defence has been. Re-installing 108kg Jamie Roberts at inside centre is a given, now his hamstring is coming right, while the Lions must also use steamroller Manu Tuilagi off the bench which they chose not to in Melbourne last weekend. That's the firm view of Welsh rugby great Jonathan Davies who fears the Wallabies have all the momentum and Gatland a raft of selection problems. The Lions are staring down the gunbarrel. At the moment, you have to favour the Wallabies to win this unless Gatland brings back all the big boys," Davies warned. To me, selection is massive this week because we have to simplify it...back to basics and smash out a result. We have to try to run over the top of the Wallabies with more ball-carriers like Roberts, Tuilagi, (flanker) Sean O'Brien and a new No.8, Toby Faletau. I feel the Wallabies have been the better and more clever side in the first two Tests and the Lions have just not been able to get on the front foot. Meanwhile The Wallabies have warned the British and Irish Lions the best is yet to come from them as they prepare for Saturday's deciding test in Sydney. We have to outmuscle the Wallabies because if the Australians control possession, Will Genia just dominates the show. Davies, an HSBC Lions tour ambassador who excelled as a dual international in the 1980s and "90s, said captain-elect Brian O'Driscoll and namesake Jonathan Davies would be split up in the centres. They've played well but the Aussies have kinda coped with that. It's time to outmuscle and get on the front foot with Roberts in there," Davies said. Scans revealed a significant tear in the shattered Warburton's left hamstring which means Ireland's powerful ball-runner O'Brien or Welshman Justin Tipuric will play openside flanker in Sydney. Warburton's breakdown work to earn penalties and pilfers was impressive in Melbourne last weekend. Sir Clive Woodward, England's 2003 World Cup-winning coach, expressed just how good in his Daily Mail newspaper column: "The openside's 70 minutes on the field was the most outstanding performance I have ever seen from a Lion. He was that good. Damaging ball runner Manu Tuilagi of the Lions during the International Tour Match between the Melbourne Rebels and the British & Irish Lions at AAMI Park. Warburton hopes still to pep up his team from the sidelines. I wish the team all the best and hope I can play some part in the build-up this week.