Waris's agent Phil Radley has admitted that he has not yet heard of interest from United, but expects his client to grace the Premier League in the future.
"I wasn't aware of Manchester United travelling to the Europa League fixture - but Premier League interest does not surprise me," Radley told Goal.com.
"There were Premier League clubs looking at Waris in the summer, but he was unlucky at the World Cup - he picked up a thigh injury in Ghana's final warm-up game - were it not for that he would have started alongside Asamoah Gyan and then I think those clubs would have come in for him.
"Waris certainly has the qualities for the Premier League - he is very quick and strong. Clearly he is a proven goal threat, but he is also a real fighter who never gives up and will chase down lost causes and put himself in dangerous areas."
Waris joined Trabzonspor from Spartak Moscow in September. Earlier this year, he scored nine times in 16 league games during a loan spell with French side Valenciennes.