"Besiktas were the team to beat in our group and we want to prove that we're capable of beating a team like that in the Champions League".
Besiktas' players pose for a team photo prior to the UEFA Champions League group G football match RB Leipzig vs Besiktas in Leipzig, eastern Germany, on December 6, 2017.
RB Leipzig's hopes of reaching the knockout stages in their debut European season were ended after they suffered a 2-1 home defeat by Besiktas amid late drama.
Yet Leipzig's hopes of progressing had effectively been ruined after only 10 minutes when Alvaro Negredo put the Turkish side ahead from the penalty spot after a foul by captain Willi Orban on Jeremain Lens.
The goal came three minutes after the Bundesliga side, already down to 10 men, thought they had escaped defeat against the odds with a fine Naby Keita goal.
But Talisca's goal in the 90th minute allowed Besiktas to advance to the group of 16.
The Germans must pick up more points against group winners Besiktas than Porto do at home to eliminated Monaco if they are to snatch the second spot.
They are the only Turkish team to qualify from the group stage undefeated and as group leader in the history of the tournament. The Italian club's hopes of snatching second place in Group F, however, were hit as Feyenoord fought back to equalise through Nicolai Jorgensen before claiming the dramatic victor and their first points in this year's group stage.
"I wouldn't say it was the most incredible game of my career as Leipzig have had plenty of big games during my time with the club which I've started. A game against Bayern would be special though", Tosun said, according to UEFA's official website.