Liverpool legend Graeme Souness has claimed that former Manchester United star Paul Pogba had the capability to be the “best midfielder in the world.” Pogba’s first spell at Old Trafford came to an end in 2012 after he failed to agree to a new deal with United, with Sir Alex Ferguson furious with the decision. However, the 30-year-old Frenchman went on to make a name for himself at Juventus and enjoyed a prolific first spell with the Old Lady. Pogba made his hotly anticipated return in 2016 after United splashed out a then-world-record transfer fee of £89m to sign him from the Serie A side. Th…