4. Borussia Dortmund
Last years' Champions League finalists will again be looking to cause problems in the Champions League. Despite, losing Mario Gotze he was replaced by Liverpool target Henrikh Mkhitayran, who can certainly be a hassle to opponents with his dribbling and passing ability. Dortmund finished second to a strong Bayern Munich side last season in the Bundesliga but did win the league the season before that. Jurgen Klopp is an undoubtedly fantastic coach, he is a tactical genius and his man management skills are a joy to behold. Dortmund are strong at the back with the likes of Hummels and Subotic. Mkhitayran will be fantastic in the middle along with the likes of Baszczykowski, world-class Marco Reus, Gundogan and Sven Bender. You also can't forget Robert Lewandowski who demolished Spanish-Giants Real Madrid last season in the Champions League semi-finals. New-signing Pierre-Emerick Aubameyangs' pace will also cause a world of problems for Dortmund's opponents