Khabib Nurmagomedov is one of the UFC's biggest stars.
After his controversial 2018 clash with Conor McGregor hit the headlines, he became a household name around the world - even to those who are not fans of mixed martial arts.
His net worth skyrocketed from £770,000 to £9.5million on the back of it as he lapped up the commercial opportunities that came on the back of being in the limelight.
By his side, as he enjoys being the most influential Russian sportsperson currently active, is his wife.
But there is an air of mystery around her, given that Khabib has never revealed her identity - or even her name.
The pair got married in 2013 in their hometown of Dagestan. The ceremony took place in Kirovaul village, close to Makhachkala, where the Nurmagomedov family live.
It is claimed that the wedding was celebrated by the whole village, with almost 4,000 people coming out to join the festivities.
The wedding venue had a capacity of just 1,200 people, meaning they had to switch guests on three occasions to let everybody in.
It is claimed that the wedding cost 700,000 rubles - a mere £8,700 - and most of the ceremony was paid by family and friends. Of course, Khabib had not made his millions from the UFC by this point.
In the build-up to the fight with McGregor, the Irishman made a vile comment about Khabib's wife on social media.
He screenshotted a picture of their wedding day and wrote: "Your wife is a towel mate."
The couple have two children. Their first child, a girl, was born in June 2015 and her name remains unknown.
Their son, who was born in December 2017, is named after Khabib’s great-grandfather – Magomed Nurmagomedov.
In August, Khabib announced that he was expecting a third child with his wife.
Khabib's wife is actually a distant relative of his. In an interview with Russian newspaper Sport-Express, Khabib's father Abdulmanap confirmed the fact and even claimed that she already had the surname Nurmagomedova before they tied the knot.
A picture which appeared to show the identity of Khabib's wife is in fact not her.
The selfie in fact is alongside Russian pop artist and TV host Olga Buzova, but many mistook the picture for being with family.
In the future, Khabib could have more wives, with his muslim beliefs allowing him to have up to four.
His father has claimed that all men in their family get another wife when they are in their 50s or 60s. Both Khabib's father and grandfather had two wives.
