Florentin Pogba has marked the "magical'' encounter against younger brother Paul Pogba by having both of their squad numbers shaved into his hair.
Anticipation has built since Manchester United and St Etienne were drawn against one another in the Europa League round of 32, pitting the Pogba brothers together.
The siblings have come a long way from the artificial pitches of Roissy-en-Brie in the Parisian suburbs -- an occasion Florentin is celebrating with the kind of haircut his younger brother would be proud of.
A bleached No. 19, the St Etienne defender's squad number, has been cut into his hair, with Paul's No. 6 crafted into the other side ahead of Thursday's first leg at Old Trafford.
"The 19 is my squad number and the six is for him,'' Florentin said. "It's going to be a magical moment and I hope he and I enjoy it the best we can.
"No anguish at all, absolute excitement for me. No worries at all. It's all positive. I'm really passionate about the game and I cannot wait to play in this historic stadium and to play against my little brother, so it'll be fun.''
The 26-year-old hopes the round-of-32 tie goes the same way as the table tennis matches against his little brother as St Etienne look to secure a shock result in Manchester.
Their mother, Yeo, will be at the first leg and next Wednesday's return fixture in France, to enjoy the "one-off'' occasion.
"Mum's going to be here,'' said Florentin, whose twin brother Mathias plays for Sparta Rotterdam after time with Wrexham, Crewe, Pescara, Crawley and Partick Thistle.
"Obviously these things don't happen very often in a player's career, the chance to see her two sons playing against each other, so she'll be here and at the return leg too.
"She can't lose really, can she? So it's going to be a fantastic night for her and a moment of real joy that she will enjoy watching both of her boys play.''
It is a moment the whole family are relishing and look set to enjoy whatever the outcome, according to Florentin.
"We've given each other some stick and there was some banter straight after the draw was made, but since then we've been so focused on our respective league games,'' he added.
"We've not been in that much particular contact about this one. For sure it's a momentous occasion for us, an occasion full of joy, and for sure I'll be swapping shirts with him. I don't know who's going to be happy at the end, but may the best man win.''