What if Genk had retained their best players in the last decade?

#2 Defence

Koulibaly is one of the leading defenders in the world at the moment.

It is hard to imagine Kalidou Koulibaly playing in a team other than Napoli. The Senegal international made his name at Genk before moving to Napoli in 2014.

Although he won just one Belgian Cup, he has had a successful career with Napoli. The 28-year-old is now one of the leading central defenders in the world with many teams vying to add him to their roster.

Christian Kabasele gets the nod to partner Koulibaly in defence. The Belgium international joined Genk as the replacement for the Napoli-bound Koulibaly. Like his predecessor, Kabasele just spent two seasons at the Belgian side before moving to Premier League side Watford.

He made 81 appearances and scored 7 times for Genk, but failed to win any silverware with the Belgian side.

One of the biggest defensive prospects in the world

Another product of the Genk youth academy, Timothy Castagne is widely considered to be one of the most exciting young defensive prospects in the world at the moment. The right-back and Kabasele made their Genk debut during the same season.

Castagne like Kabasele failed to win any silverware with the Belgian side before moving to Atalanta last season. The 23-year-old was an integral part of Gian Piero Gasperini's side as La Dea qualified for the UEFA Champions League for the first time in their history.

Yannick Carrasco never made a single appearance for Genk after coming through their youth setup. The Belgian international made the move to Monaco at the age of 16 and five years later moved to Atletico Madrid. He signed for Chinese Super League side Dalian Yifang last year.

One of the most versatile players in the Belgium national team at the moment, Yannick Carrasco's ability to play as a full-back and a winger has seen him turn into an indispensable player in Roberto Martinez's squad.