According to Sky Sports, United are interested in the Everton right-back, who was described as the best player in his position in the Premier League by Jamie Carragher back in October 2014, as per the article.
McGrath echoed the former Liverpool defender’s statement and said he would be the ideal signing for Louis van Gaal to make this summer.
"I definitely think he would be a good fit for Manchester United,’’ McGrath told talkSPORT.
“He has got every attribute a right-back wants. He works so hard, he is a good defender, and he has got an engine like no other.
“I think he would be great for Manchester United and I really hope that is one of the deals that goes through."
Would Seamus Coleman be the ideal signing for Manchester United this summer?
The Republic of Ireland international is recognised as one of the best right-backs in the Premier League and has consistently been one of Everton’s best players over the past two seasons.
He has become a stalwart of Roberto Martinez’s side and would be a huge loss to Everton, but is he exactly what United need this summer?
Van Gaal is already well-stocked with good young defenders and the void at right-back gives him a chance to bring someone with a bit of experience into the side.
Coleman would undoubtedly strengthen United’s starting eleven, but someone with a bit of experience could go a long way in developing United’s character on the pitch as it would off it.
An older head could be ideal for Van Gaal. However, as far as right sided defenders based in England go, Coleman is certainly one of the best.