He told derwesten.de: "The situation is now different.
"Manchester have made a much improved offer. In situations like this there are always a lot of different things to consider and in the end at one point we have to make a decision.
Independence Day Resurgence ft. Manchester United
"And as we are back in training on Monday we will decide at the weekend.
"I have contacted the relevant people and we will weigh things up at the weekend. And then the board will make the decision, definitely at the weekend."
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