ESPN: Holtby, 23, arrived at White Hart Lane from Schalke last January, but has struggled to make a real impact in North London.
The Germany international has been linked with a return to the Bundesliga, with Borussia Dortmund and Schalke having both been credited with an interest, while a move to Fulham could also be on the cards.
What a shame, he would be a good signing for united tho.