VIDEO: USMNT star Aidan Morris given incredible reception after being subbed in final MLS game for Columbus Crew ahead of blockbuster Middlesbrough transfer

The 22-year-old is set to join Championship side Middlesbrough for a fee of around £3 million (€3.5m/$3.7m) this summer but was allowed to make one last appearance for Columbus Crew in MLS. He was taken off towards the end of the game against Sporting KC and was given a hero's reception as he departed for the final time.

Morris gave an emotional interview after the game, saying: "I’m just so blessed. The game just encapsulated everything in my last seven years here. The identity of us and the team we like to be, and how we like to approach games, it’s my identity. My heart is black and gold."

Morris makes the move having featured in 16 of Columbus Crew's 17 MLS matches this season. He was an integral part of the midfield, scoring twice and assisting two. Boro will be hoping they are signing a young gem who can help them push towards the play-offs and an eventual return to the Premier League.

Although the English domestic season is not currently running, Morris is set to feature at the Paris Olympics for the U.S. team in July and August. Boro could block him from playing, but will likely allow it ahead of his move for pre-season.