It is not yet known when Ronaldo will return to United if a move doesn't materialise in the coming weeks, though 90min understands he will not refuse to play if called upon when the league restarts.
Some sources believe that while no obvious destination is likely at present, Ronaldo will eventually force his way out to a new club. United are already light in the final third and their new stance on Martial - which has changed in recent months - is partly due to the fact they would be short if they lost both.
United are still interested in Ajax right winger Antony, though the two clubs remain some way apart on an agreeable fee. They have also been offered Barcelona forward Memphis Depay, but are not interested in pursuing a deal at this point.