United have been strongly linked with a move for Sporting Lisbon playmaker Fernandes this summer.
With Paul Pogba’s Old Trafford future currently in doubt, the Portugal international is understood to have been lined up as a replacement.
As Pogba has been for United in Australia, Fernandes is currently on tour with his club in Switzerland.
Sporting surprisingly lost to local side FC Rapperswil-Jona 2-1 on Wednesday night.
Despite the result, Fernandes took to his Instagram to thank fans for their support.
“First completed preparation game, the result does not satisfy us but the important thing now is to learn from the mistakes while there is time to correct them,” he wrote.
“Thank you to all the Sportinguists here in Switzerland for the support shown in the game.”
However, he couldn’t have predicted what was going to happen next, as United fans flooded his replies, urging him to join the Red Devils.
“We wait (for) you in Manchester United,” one wrote.
A second added: “GLORY GLORY MAN UNITED.”
“I can’t wait to see you as United player,” a third replied.
Another simply put: “United is waiting.”
“Time for United mate,” wrote a fifth.
And another asked: “Next game of preseason.. at ManchesterUnited!?”
Fernandes scored 32 goals from attacking midfield in all competitions last season, providing 18 assists.