Career
Born in Stropkov, Kožlej began playing youth football for Tesla Stropkov and 1. Football Club Tatran Prešov. He is well known for his excellent goal-scoring ability and holds the all-time record among Slovak football players. He arguably spent his most productive seasons in terms of goals scored at Olympiakos Nicosia and has returned to this club to finish his career which occurred in the end of January 2010.
Kožlej appeared in 26 matches for the senior Slovakia national football team from 1996 to 2005.