Eintracht Frankfurt goalkeeper Kevin Trapp refuses to have sex with fiancee Izabel Goulart if his team loses a game.
Goulart became engaged to Germany international Trapp in 2018 and is a former Victoria's Secret model.
Eintracht won the Europa League last season and are in Group D of the Champions League this term, alongside Tottenham Hotspur.
Advert
Trapp will be in action against Antonio Conte's side on Tuesday evening and Goulart previously opened up on the details of their relationship.
She claimed per The Sun: "Kevin and I make love a lot - four or five times a week.
"But if he has played in an important game and his team loses, I can make myself beautiful, have my nails done and wear my best lingerie - and there still won't be any sex."
Advert
The couple met during Trapp's time at Paris Saint-Germain, with Goulart regularly attending games at the Parc des Princes.
Frankfurt slumped to a 3-0 defeat against Sporting CP in their first group game but recovered with a 1-0 victory away to Marseille.
Trapp played a key role in Oliver Glasner's side winning their first European honour in over 40 years in 21/22.
He made a key save to deny Rangers winger Ryan Kent an injury-time winner in the Europa League final, before saving Aaron Ramsey's decisive penalty in the shootout.
Advert
Last summer, the 32-year-old was linked with a move to Manchester United. Erik ten Hag identified the 32-year-old as a potential backup to David de Gea.
Trapp confirmed the interest in an Instagram post before explaining why a move didn't materialise.
He said: "There have been a lot of reports of interest from Manchester United in the past few days. It is true that there is a written offer.
Advert
"Manchester United are a world-class team and the fact that I can deal with and think about such an offer, I hope everyone understands.
"Yesterday, however, I informed the people in charge of both clubs that I had chosen Eintracht.
"I have experienced unforgettable things here with Frankfurt and we made history together."
Topics: Eintracht Frankfurt, Champions League