WI vs PAK Highlights World Cup: Mohammed Amir struck thrice for Pakistan. © AFP Chris Gayle, despite struggling with the back pain, scored a match-winning half-century as West Indies thrashed Pakistan by seven wickets at Trent Bridge, Nottingham, on Friday. Nicholas Pooran smashed the winning six as West Indies chased down the small 106-run target with 218 balls to spare. Gayle top-scored for West Indies with 50 runs off 34 balls, including six boundaries and three sixes. In the end, Pooran was unbeaten on 34, with four boundaries and two sixes, along with Shimron Hetmyer not out on seven on the other end. Fast bowler Mohammad Amir was the only successful bowler as he claimed three big wickets. Earlier, Jason Holder’s plan of bowling first after winning the toss worked well for the West Indies as they bowled out Pakistan for a paltry 105 in 21.4 overs. Oshane Thomas led the bowling attack with four wickets while Windies skipper Holder helped him with three crucial scalps. Andre Russell struck twice for West Indies before showing worrisome sign of uneasiness. He was seen limping across in the outfield. However, a small target of 106 runs might not require Russell’s contribution. Fakhar…