Striker Marcus Rashford has struck form in their run of four straight league wins with three goals and two assists and Ten Hag said he was delighted to see the England man play with a smile again.
“What I see is a happy Marcus Rashford,” Ten Hag said. “We worked really hard in the last two months with him on different aspects. He likes it, he wants to transfer it to the pitch.
“It started with happiness, he comes in every day, he enjoys it, he’s smiling, a really positive vibe, and if you put all of those things together — like the way of play — and you are happy, you will contribute more to the team.”
Anthony Martial will miss the Sociedad game with an Achilles injury while fellow forward Cristiano Ronaldo could start.