FC Twente head coach Rene Hake has urged his four loanees to improve their displays in the Eredivisie in order to continue their upward career trajectory.
The Tukkers currently have young Belgian forward Dylan Seys from Brugge and three players from Manchester City, striker's Enes Unal, Yaw Yeboah and midfielder Bersant Celina.
While Hake's side have performed admirably this season under their financial constraints, occupying sixth place, he feels the youngsters need to step up in order to secure their long-term future as top professionals.
"They do not have any certainty where they will play next season, so they have to put every effort to make them attractive in the market in the coming months," he told reporters after the 1-0 win over Heerenveen.
Teenage Turkey international, Unal has been the pick of the bunch this season with 10 league goals to his name in 21 games.