BBC Sport's Chelsea reporter Nizaar Kinsella spoke to BBC Radio 5 Live's Football Daily podcast from the Parc des Princes.
I feel like I watched two matches. One from the first to the 75th minute of a positive Chelsea performance, and then that high-risk, high-reward approach just delivered nothing.
They lost everything on the night and it felt like an absolute collapse at the end. I couldn't believe what I was witnessing – the tie thrown away after what I thought was actually a good performance for much of it.
It feels like a missed opportunity. When it was 2-2 I felt it could go either way and Chelsea could even get a win at the Parc des Princes.
It was end-to-end, really good football. Chelsea were creating and matching PSG all over the pitch physically.
It was all going swimmingly but that mistake from Filip Jorgensen seemed to affect the mindset of the players. I felt sorry for him because he did have a good game and then he just had that mistake in the biggest game of his life.
I don't think Robert Sanchez has been that bad this season but he had two poor games against Arsenal under Liam Rosenior. Jorgensen did not take his chance and it might be time to look at Sanchez again for the Newcastle game.
It's one thing one player making a mistake but then they all started doing it.
To lose 5-2 feels harsh from what I witnessed but that's this Chelsea mentality; young players, throwing away games, ill-discipline almost.
It's not just the red cards, it's the way they're throwing away games.
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