The Bundesliga champions have been keeping tabs on Martial and remain keen on securing his signature.
United reportedly want £70m for the 22-year-old, but Bayern aren’t willing to go above their £50m valuation.
Jose Mourinho is a huge fan of Lewandowski and has tried to lure the Poland striker to Old Trafford in the past.
The two clubs will now lock horns in a negotiation, that may see the player exchange take place.
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