Kings Kangwa came off the bench to make his UEFA Champions League debut in Red Star Belgrade’s 3-1 away defeat to holders Manchester City.
Kangwa was introduced in the 81st minute with the Serbian club already training the Champions.
Ghana winger Bukari gave Red Star Belgrade the lead with a superb goal just before half time.
After the break Alvarez pull one back for City.
Goals from Rodri and another from Alvarez sealed the victory for the treble winners.
In the other group match, RB Leipzig thrashed Miguel Chaiwa’s Young Boys 3-1.