It seems that every summer there is a messy and painful transfer saga that drags on throughout the course of the window. It usually involves Manchester United. Two summers of wrangling with Borussia

Manchester United find themselves in a complicated race to sign Sporting Lisbon striker Viktor Gyokeres this summer

Arsenal and Manchester United have both been heavily linked with Viktor Gyokeres this summer but Juventus have now emerged as a rival in the race for the Sporting Lisbon star