The Telegraph says United are threatening to walk away from a deal to land Jadon Sancho and target Perisic instead.
Borussia Dortmund are refusing to budge on their £108million asking price despite claims Sancho is keen to make the switch to Old Trafford.
The Red Devils are reluctant to fork out such a fee amidst the ongoing financial crisis in football due to the pandemic.
With just three weeks to go until the transfer deadline, United are not willing to risk putting all their eggs in one basket.
And they have started to pursue other targets, with Perisic an option.
Ole Gunnar Solskjaer is determined to land a wide attacking player before the October 5 deadline.