The Portuguese has played down his side's heavy defeat to Thomas Tuchel's men in Shanghai and says it is "unfair" to judge his players at this stage of pre-season
Jose Mourinho feels the difference between Borussia Dortmund and Manchester United in Friday's International Champions Cup encounter was akin to the gulf in quality in Formula One and Formula Three.
The Portuguese was handed his first loss as United manager as the Red Devils were thrashed 4-1 by a clinical Dortmund side in a difficult evening in Shanghai.
Dortmund had played four matches already in preseason and the difference in energy and efficiency was notable as two goals for Gonzalo Castro, a penalty from Pierre-Emerick Aubameyang and Ousmane Dembele's fine solo effort put United to the sword.