PERTH, Australia – Valter Walker beat Junior Tafa with a first-round technical submission Saturday to close out the preliminary card at UFC 305 at RAC Arena in Perth, Australia. Take a look inside the fight with Walker, whose win was controversial since Tafa didn’t tap – but yelled out in pain from a heel hook, which led to the stoppage – and a post-fight cheap shot slap from Tafa. Now Walker wants Tafa’s brother Justin Tafa next after Junior Tafa called out Walker’s brother Johnny