Mount is 21 years old and already has over 100 senior appearances to his name, including six England caps. But should he feature against Bayern Munich tonight it will be his first taste of knockout Champions League football.
Ahead of the round of 16 first-leg clash at Stamford Bridge, Mount told the club's website: "It's a massive feeling, to be able to be involved is brilliant.
"For us younger boys, for us to realise we actually do need to step up every game and that pressure is always on now. It helps us to perform, I feel. It makes us stronger together as a team. So, it's a brilliant experience and we're learning all the time.
"When you hear the Champions League anthem you kind of pinch yourself. I remember speaking to Tammy about it and saying when the song is on it's just an unreal feeling. It's kind of overwhelming to be involved and to hear that song that many legends in the past have been able to stand there and listen to. It's obviously a massive moment."
He added: "It's quite surreal, how in the past it's happened and now we're playing against Bayern and a legend's the manager (Frank Lampard). It's crazy how everything's happened, but we're very, very confident going into the game that we can win.
"We need to take that confidence that we had at Ajax away and the big performances that we've pulled off this season, and hopefully we can do it now."