Champions League round-up: Bosnian stars shine for Roma, while Olympiakos leave Arsenal on the brink

Arsenal must win their two remaining group games to stand any chance of progressing.

Thomas Muller led the way with two goals as Bayern Munich left Arsenal’s Champions League dream in tatters with a stunning 5-1 win over their Group F rivals in Germany.

Early strikes from Robert Lewandowski, Muller and David Alaba gave Pep Guardiola’s men – who had lost to the same opponents at the Emirates Stadium last month – a huge half-time advantage.