Liverpool and Manchester United are interested in signing Alex Song who is receptive of the interest from both clubs.
Sell him to ManU for 20-25m. If they can pay 28m for fellaini then they can surely pay 20-25m for song..
This will require some selling skills and I doubt Zubi has any. The whole deal will go:
United/Liverpool: Hey, Zubi, we want this Song player from your club.
Zubi: Oh yeah? Sure, we want to sell him anyway.
United/Liverpool: Good. But we won't offer anything over 10m pounds.
Zubi: Great, I was planning to sell him for 8m pounds anyway.
And the deal is done.