The 18-year-old gamer joins as a dedicated PlayStation4 (PS4) player and will represent the Blues in FIFA tournaments and competitions around the world.
He follows Kieran ‘Kez’ Brown, who will continue to play for City in Xbox tournaments, to become the Club’s second esports signing.
Jorgensen enjoyed a successful 2017 having become the inaugural champion at the FIFA Interactive Club World Cup in August, beating competitors from top European football clubs, and also reaching the FIFA Interactive World Cup Grand Final in London.
“I’m extremely happy to be stepping into the next chapter of my esports career with Manchester City,” he said.
“2017 represented such a successful season for me and I have the drive and ambition to take my game to the next level.”
The FUT Champions Cup on 26-28 January in Barcelona will see Marcus represent City for the first time and as the latest signing, he takes the number of esports players within the City Football Group clubs to five.
New York City have Chris Holly and Joey Calabro, while Melbourne City are represented by Marcus Gomes.
Chief Marketing Officer for City Football Group, Nuria Tarre, added: “We’re really excited to be signing Marcus to represent Manchester City in tournaments and fan events around the world.
“He has already demonstrated that he can compete amongst the best esports FIFA players around so we can’t wait to see how he progresses."