Sonia Bompastor reflected on a difficult night in North London and vowed to fight until the end in the second leg.
Chelsea hit the post twice and had two disallowed goals on the night, and were at 2-1 heading into the final quarter of an hour following Lauren James' stunning strike midway through the second half, before Alessia Russo restored the Gunners' two-goal advantage.
And while the defeat means we face an uphill battle in the second leg at Stamford Bridge next week, our head coach was pleased with how her players performed.
'I’m frustrated for sure about the result,' Bompastor reflected afterwards. 'To be honest, I'm really proud of my players. I think it was a good performance from the team.
'It's always difficult to say that when you lose the game, but I think we created enough to be in a better place in terms of results. We hit the post twice in the first 10 minutes. I've been in these games, and when we didn't score, it just changed the game mentally.'
Bompastor masterminded a 3-0 win over Manchester City in the Champions League at Stamford Bridge last season to come back from 2-0 down against the Cityzens from the first leg.
The head coach wants to bring that same faith to the home game at the Bridge this time around, as progression is still in our hands.
'We are losing by two goals now, but I told you, from now until the end of the season, we'll take it game by game,' she continued. 'This season, nothing has been easy for us in many aspects, but we still have belief and confidence.
'I think the performance we put on the pitch tonight was a good one. So we'll take that, and we'll make sure that in the game next week, we'll try to come back from this result.
'We need to go into every game with belief and confidence. I think we still have quality in the squad, in the team, to achieve great things, but nothing will be easy. We need to face Arsenal again, who are a really good team, but if I don't have confidence, I might as well just stay at home.
'It’s my job to make sure I give the belief and the confidence to the players, but I think when we analyse the performance tonight, it will bring that confidence.'