Duisburg defender Marino Biliskov has been banned for four games for butting a player in last weekend’s Bundesliga game with Bayer Leverkusen.

The Croatian player was sent off for his 77th-minute attack on opponent Tranquillo Barnetta. Leverkusen won the game 3-2.

Duisburg, who were promoted from Bundelsiga 2 last season, are facing a battle to avoid an immediate return. They are second from bottom on 17 points.