The angry United boss has vowed not to play the midfielder again despite Schweinsteiger claiming he is still determined to force his way back into the picture.
Schweinsteiger, who calls time on his international career tonight in a friendly against Finland, has two years left on the contract he signed after arriving from Bayern Munich in 2015.
The 32-year-old could earn around £18m just by sitting tight until his deal runs out in June 2018 but he believes he can get Mourinho to change his mind.
“The USA is certainly an option, should it come to that.”
Although the MLS transfer window does not open again until after Christmas it seems unlikely United will attempt to find Schweinsteiger a club before the transfer window closes today.