The Academy graduate is with the Young Lions in Georgia as they take on Portugal in the final of the UEFA European Under-19 Championship.
Marcus, 18, part of our Development Squad and with a first team debut under his belt last season, has certainly played his part in England's progress.
He started the group opener and played 83 minutes in a 2-0 win against Bulgaria.
On the bench for the second group match, Marcus entered the fray against Holland with 13 minutes remaining and set-up the winner, beating his man on the right before delivering a cross that was eventually turned home by Forest's Ben Brereton.
Below: Marcus (centre) with the Under--19 squad after the dramatic semi-final win against the Czech Republic
Marcus was an unused substitute as England put old rivals Germany to the sword 4-1 in the final group match to book a place in the semi-final.
The attacking midfielder stepped up in that semi-final against the Czech Republic on Wednesday. Starting on the bench again, Marcus came on in the 69th minute and again created the only goal of the game, a lightning burst down the right before crossing for City's Lukas Nmecha to backheel home a dramatic winner in added time.
The final is at the Tengiz Burjanadze Stadium in Gori kicking-off at 5pm UK time.
Marcus hopes to follow in the footsteps of a number of team-mates who have tasted success this summer. Josh Onomah and Kyle Walker-Peters were part of the England squad that won the FIFA U20 World Cup, Japhet Tanganga was in the Under-20 squad that won the Toulon Tournament in France and Tashan Oakley-Boothe, Timothy Eyoma and Reo Griffiths reached the final of the UEFA U17 Championship. England also reached the final of the UEFA U21 Championship.