Debreceni Vasutas Sport Club is a Hungarian professional football club based in Debrecen that competes in the Nemzeti Bajnokság I , the first tier of Hungarian football . [ 1 ] They are best known internationally for reaching the group stages of the UEFA Champions League in the 2009–10 season . [ 2 ] Debrecen have become the second most successful club in Hungary since 2000, winning the Hungarian League seven times. [ 3 ]
