Gullit has been amazed by the significant influence the former Atalanta star has had at Juventus this season.
Dutch great Ruud Gullit admits he's a big fan of Juventus midfielder Teun Koopmeiners.AdvertisementAdvertisementHe told La Gazzetta dello Sport: "For him it is without a doubt an important step forward that he deserved for the performances he had in these seasons at Atalanta.
"He is a 'total' midfielder, one of those who can do everything. I read that he had offers from abroad, but he did well to stay in Italy and choose a club where he can further grow and improve.
"I have only one regret: if he had not been injured and Holland had had him at the European Championships, they probably would have reached the final and maybe..."