Arsenal face Olympiacos in the second Champions League matchday of the season on Tuesday night, while Dinamo Zagreb are searching for another miracle.

The Croatian champions defied the odds to beat Arsenal in Zagreb a fortnight ago and now travel to the Allianz Arena to face Group F favourites Bayern Munich.

Pep Guardiola’s side have won all seven Bundesliga games so far this season and beat Olympiacos 3-0 when Zagreb clinched their famous victory over the Gunners, and the Bayern Munich boss is now warning his players not to suffer the same fate.

“You’d normally think Arsenal would win in Zagreb, but then you watch the game and you see straight away why Dinamo won. They are very organised, very aggressive,” the Spanish coach said to the media as he looked ahead to the game.

“They have very technical players and we need to approach the game with great seriousness.

“They played well in defence, with their players showing discipline by maintaining their shape. 45 games without losing… this must be a really strong squad – it won’t be easy.

“It’s a great opportunity to bring us into a good position for the game against Arsenal. You have to win your home games to get ahead.”

The next game of the group will see Bayern travel to London to face Arsenal, before the Gunners face the return trip in the first week of November. After those two matches we will have a very clear picture of where we stand.

Arsenal's French manager Arsene Wenger (R) and Bayern Munich's Spanish head coach Pep Guardiola react during the UEFA Champions League last 16 second-leg football match FC Bayern Munich vs FC Arsenal in Munich, southern Germany, on March 11, 2014. AFP PHOTO / CHRISTOF STACHE (Photo credit should read CHRISTOF STACHE/AFP/Getty Images)
Wenger and Guardiola will soon go head to head in the Champions League once again. (CHRISTOF STACHE/AFP/Getty Images)

It is a huge compliment that Guardiola knows he cannot see his side slip up on Tuesday, allowing Arsenal a chance to make up the three point advantage that Bayern currently hold over us before the two sides play back-to-back fixtures.

Hopefully we beat Olympiacos and – no matter what their result against Dinamo is – we can give Bayern and Guardiola a bit of a fright with a strong performance when they come to London in October.