“The majority of the game we were dominated physically,” he said to the club’s media.
“The first goal is a really poor one to concede, no one closed him [Terry Devlin] down and then it went straight through our goalkeeper, and that can’t happen.
“The penalty is subjective. We had better chances, we had clear-cut chances, but the all round performance tonight was really poor.
“Today was not the messages we give. It’s 11v11 out there and they wanted it more than us and that is unacceptable.
“If you don’t do the basics well then you can’t have a platform in the Championship.
“The first goal is a goalkeeping error, he has to save that. The second one we have to look at, but it was that kind of night.
“With the changes, we had to lay a glove on them and be stronger, and have more of a threat.
“[Jayden] Fevrier had a real impact when he came on, I don’t like making that many changes, but we were poor tonight.
“I thought there was a lot going on in the game, everything first half was a booking. In my opinion, the referee got a hell of a lot wrong tonight and he contributed to that type of the game, but that didn’t impact the outcome.
“It is not just the goals we conceded, it is the level of the performance I am not happy with.
“As much as there was glimpses of quality, there was a massive part of it that isn’t us.
“It was a tough one to take, but we have to go again.”
Portsmouth manager John Mousinho told BBC Radio Solent:
“Delighted with the result and we matched it with a really good performance, a really strong performance.
“Take the opening minute or so out of it when Nico saved us – it’s easy to forget that when you come away with an important away victory, you look at that and it was just a moment of us being lax defensively but then I think that maybe sharpened us up a bit.
“After that, I thought for 55 minutes we were excellent, fully deserved the lead, came out in the second half and Charlton make three changes, you might expect a different game.
“But we came out, fully deserved to get the third goal and it went a bit crazy after that. We made a few very strange decisions after that which we hadn’t made but the fact we saw the game out in difficult circumstances is really pleasing.”
Here’s how social media users reacted as Nathan Jones vents anger at Charlton fans after 3-1 defeat to Portsmouth…
@James_David20: Not spitting and pumping his chest now is he?
@LewisT_Williams: I’m begging you, Charlton, please sack him and I’ll come and pick him up myself and take him home. He’d have a heart attack seeing what’s happened to this club over the years. Absolutely fed up with the constant poor football decisions. #LTFC
@cafczac: Fuck me I love him.
@Marriott110: In fairness I have a similar reaction when reading through the mountain of shit on here after a loss #cafc
@LewisH92: The worst headloss we’ve ever seen since Michael Appleton offered fans out. #cafc
@FFSChristie: How do Charlton fans tolerate this every negative result
@Scotty__91: “Thank you for your support” on the big screen, cuts to Nathan Jones having a fit at said support.
@DanFinchy3: Ironically pointing at the floor. Where we don’t let the ball touch
@SCFC_Demi: Life comes at you fast Nathan
@TheSE7_: Bit much now innit. Not sure what he expects, it’s yet another game that has a bit more to it and our arseholes have absolutely fallen out again. Paying supporters more than entitled to show their frustrations. #cafc
@ChroniclesCAFC: One of these days his heads gonna explode 😂😂😂
@Alex_CAFC47: I wonder what happened 😬 you can’t be doing that to your fans tho #cafc