Atletico Madrid coach Diego Simeone says he is well aware of the dangers of Wednesday's Champions League game at Rostov.
Bayern began the season with eight straight wins in all competitions but are now without a win in three games.
Teammates at Barcelona for the past two seasons, they now find themselves in opposition. We asked our club correspondents to run the rule over them.
There are storylines galore when it comes to Barcelona vs. Man City but the battle of two top goalies is the one to watch, writes Graham Hunter.
ESPN FC's Sam Marsden says Barca are downplaying Guardiola's return and expect a completely different Man City side.