Arsenal secured their place in the last-16 of the Champions League with a scintillating 6-0 thrashing of Lens on a night where Manchester United's participation in the competition hangs by a thread.United were left to rue their inability to close out a match in Europe once again after they let slip a two-goal lead twice to draw 3-3 at Galatasaray.Alejandro Garnacho and Bruno Fernandes scored inside 18 minutes before Andre Onana made the first of two errors to allow Hakim Ziyech to reduce the deficit.Before Ziyech’s second, Scott McTominay found the net in the 55th minute to put Erik ten Hag’s team on course for a vital victory.Yet Onana fumbled Ziyech’s set-piece over the line with 28 minutes left in Instanbul before Kerem Akturkoglu levelled with 71 minutes on the clock.It finished all square to ensure Galatasaray still have their knock-out hopes in their own hands going into the final Group A fixture away to Copenhagen on 12 December, while United must beat Bayern Munich, in a game you can watch live on RTÉ2 and the RTÉ Player, and hope the clash in Denmark finishes as a draw.Meanwhile, Copenhagen held Bayern to a thoroughly deserved goalless draw in Munich, which ended on a controversial note.Minutes after Manuel Neuer had made an outstanding double save to deny ex-Celtic attacker Mohamed Elyounoussi, referee Stephanie Frappart awarded the hosts a penalty.Frappart pointed to the spot after a pass by Bayern substitute Frans Kratzig hit Peter Ankersen’s arm from close proximity, but VAR told the French official to review the incident using the pitchside monitor and she overturned her 92nd-minute decision to ensure it stayed 0-0.There was drama aplenty in Group B too but not at the Emirates where Arsenal produced a