Arsenal are facing a big second half against Benfica.
The Gunners took the lead in their Europa League round of 32 decider on Thursday evening thanks to a great finish from captain Pierre-Emerick Aubameyang as he latched on to Bukayo Saka's fine pass to dink the goalkeeper.
That strike gave Arsenal the lead on the night as well as the advantage on aggregate following last week's 1-1 draw at the Stadio Olimpico.
Had Mikel Arteta's side seen out the first-half with a clean sheet, they would have been 45 minutes away from sealing their place in the round of 16 stage.
However, Benfica blew the tie wide open shortly before half-time through Diogo Goncalves' fantastic free-kick.
As a result, Arsenal lost their away goals advantage and must win the game on the night - or via penalties - in order to avoid being eliminated from the Europa League.
With that said, the 1-1 scoreline was the only result after 90 minutes that could have forced extra-time and the possibility of a penalty shootout.
But with Benfica scoring again it leaves Gunners with a massive mountain to climb.
So how many goals are required for the north London outfit to advance?
Well, with Kieran Tierney making it 2-2 on the night, Arsenal have to score at least once more and without reply.
That means a scoreline of 3-2 will be enough, as would 4-3, 5-4 and 6-5 as the Gunners just need to win by a one-goal margin if the Portuguese side score again.
A score draw from 2-2 upwards would mean Benfica qualify by virtue of the away goals rule.
