Arsenal will play Dinamo Zagreb in the Champions League on Tuesday night in a big game for the Gunners. The game has a scheduled start time of 2.45 p.m. ET (7.45 p.m. GMT) and can be watched online through live stream via the link below.

This is a must win game for Arsenal and even then their hopes could end today if there is a draw in today's other game between Bayern Munich and Olympiakos.

Arsenal have picked up just three points from their four games so far in this year's competition, and Zagreb have done the same.

But at the top of the group, Bayern Munich and Olympiakos are tied on nine points each, meaning if they draw today then neither Arsenal nor Zagreb can catch either of them.

So Gunners fans will be hoping that Bayern can do them a favor and claim all three points today against the Greek team.

However, that will all mea nothing if Arsenal do not themselves claim all three points tonight against Zagreb.

Zagreb defeated Arsenal in their opening Champions League game of this year's competition, and the Gunners must try and reverse that result today.

Today's big Champions League game between Arsenal and Dinamo Zagreb can be watched online through live stream by clicking here.