The 20-year-old midfielder has made an electric start to life with the Spanish giants following his £115m summer move from Borussia Dortmund, scoring six goals in as many appearances across all competitions.
Bellingham netted on his La Liga debut for Real Madrid against Athletic Bilbao in mid-August, and has now found the net on his Champions League debut for Los Blancos after pouncing on a loose ball inside the six-yard box and firing the ball home to snatch all three points for the hosts and break Union Berlin's hearts in the fourth minute of second-half stoppage time.
In doing so, the former Birmingham City man has joined an exclusive group of Real Madrid stars to have scored on their La Liga and Champions League debuts along with Cristiano Ronaldo, Isco and Marco Asensio.
Five-time Ballon d'Or winner Ronaldo, Los Blancos' all-time record goalscorer with 450 goals in just 438 games, netted both of his debut goals back in 2009, while Isco and Asensio achieved the same feat in 2013 and 2016 respectively.
Bellingham has also become the youngest Real Marid player and youngest-ever Englishman to score a stoppage-time winner in the Champions League.
Expressing his joy after scoring the winning goal, Bellingham told TNT Sports: «I'd much rather keep scoring in the 90 plus than the 15th! It's always good to score late because it normally confirms the game.
»For us, I think we dominated the game, a lot of the ball was for us. I don't really remember [Union Berlin] having too many clear-cut chances, but they defended reallyRead on sportsmole.co.uk