In January 2017, Boateng agreed to terms with Real Salt Lake to join their USL side Real Monarchs on loan.[3] However, in February it was announced by the club that Boateng had failed his physical and would not be joining the side.[4]
In March 2019, Boateng made his return to the US after signing on loan with the Richmond Kickers.[5]
Boateng finished the 2019 season by scoring two goals in the final three league matches against the Chattanooga Red Wolves on September 29, 2019, as well as in a 2–0 win over Orlando City B in the final match of the season.[7][8]