The 21-year-old agreed a three-and-a-half-year deal with the Cityzens, and was immediately loaned to Championship outfit, Middlesbrough, until the end of the 2017/18 season.
The player impressed in the MLS over the past two campaigns, and scored 14 goals in 59 appearances at the Yankee Stadium. Interestingly, he becomes former West Brom manager Tony Pulis’ first signing as Boro boss.
The young player is considered to be one of the brightest prospects in the United States, and will hope to show his mettle in the Championship to have a claim for first team football next season.
Harrison has a connection with his new club’s arch-rivals, Manchester United. The player was born in Stoke, and actually played for the Red Devils’ academy before moving to America with his parents when he was 14.
Upon his return to England, Jack stated: “I can’t wait to get started over here. I’ve really enjoyed my time with New York City and I’d like to thank Patrick Vieira and his coaching staff for helping me to develop as a player.
“I feel I’ve really improved working under him and playing regularly in the MLS, but now I’m looking forward to testing myself in England.”
The player is also excited to ply his trade at Middlesborough, and added: “Middlesbrough are a good club, with Premier League experience and they’re in the mix for a return via the playoffs this season. Hopefully I can help them achieve that.”