Speaking after the final whistle, Lukaku, who did manage to pull one back, told BT Sport: "Some things were flawed with some players, some players were hiding."
Taking to his Instagram account later, however, the Belgian insisted that his comments were misinterpreted and he meant that some of his teammates were literally hiding their faces in the dressing room following the defeat.
"Never will i criticise my teammates! Hiding your face when you're upset in the dressing room is normal... The result is terrible but we're @manchesterunited we will bounce back for sure with your support!" he wrote.
"Another big game coming up time to prepare for that one! 200 Goals now in my young career but it's time to add trophies in my career... time to work even harder"