Rodrigo Tello's deflected effort in the first half was enough to seperate the teams and the Turks were good value for their win against a laboured United second string.

Top spot isn't a given for United, a defeat worse than 2-1 against Wolfsburg in the final round would see the Germans take the position.

Bet365 and Ladbrokes reacted by pushing United out to 8s and the latter's spokesman David Williams said: "The Besiktas win was the ultimate acca buster. It was just what the bookies ordered."

Chelsea were cut to 7/2 joint-favourites with Barcelona with a variety of layers after they confirmed top spot in Group D after a solid 1-0 win away at Porto.

Group C remains tight after Real Madrid beat FC Zurich 1-0 and AC Milan and Marseille drew 1-1.

Madrid top the group and are 7/1 to go all the way with Victor Chandler and they will assure qualification if they avoid a worse than 3-0 defeat in Marseille.

Milan are 25/1 following Wednesday's games.

Bordeaux assured top spot in Group A after they beat Juventus 2-0 and they are into as short as 22/1 with Stan James.

Juventus and Bayern Munich go into the last round fighting for the other qualification place and the Italians are now 33/1 for the trophy with the Germans 80/1.