Christian Pulisic will join Chelsea from Dortmund in summer for €64m

The USA international has impressed since making the breakthrough for the Bundesliga side during the 2015-16 campaign and has since made 115 appearances for the top team, scoring 15 goals and creating another 24. He has, however, struggled to hold down a regular starting place in Lucien Favre's side as they have charged to the top of the league standings, where they have opened a six-point gap to Bayern Munich.