Charlton boss Karl Robinson has slammed his players’ first-half performance in the 3-1 defeat to Southend.

The Addicks were 2-0 down in the opening 11 minutes after shambolic defending.

It was their fourth defeat in seven league games and if results go against them later today, they could be ninth.

Robinson said: “We were atrocious in the first-half. We got outmanned in some ways. We looked naive in defence.

“We were appalling. We’ve let everyone down today. You can tell from my throat that one or two things were said at half-time, it’s probably as animated as I’ve ever been at half-time since I’ve been at this football club.

“In the second half we didn't play well, we just did what we were meant to do in the first-half. You've seen the effects it had. For the third goal people switched off, [Simon] Cox runs past three players to tap it in.

“This is not coaching, it’s not management, this is not motivation, it's just doing your own thing and not what you were asked to do.”

With many first-team players crocked, Charlton’s squad depth has been questioned.

But Robinson believes his squad is big enough to compete in League One.

He added: “It’s not that our squad isn’t big enough, it’s big enough. To have nine players out and still field a team.

“Many of the players who played today have knocked on my door to ask why they’re not playing. I said to them ‘it’s your chance to shine’.

“And if they can't do that now, there will be certain payers that we have to swap. It’s not acceptable.”

Charlton players will be called in at 7am tomorrow to watch clips of the Southend game.