Carlisle United's FA Cup opponents Forest Green have said their boss Mark Cooper is not under any investigation after allegations about comments towards his Leyton Orient counterpart.

Cooper denied claims that he made a jibe about the late Justin Edinburgh to Leyton Orient's interim boss Ross Embleton after Saturday's game in London.

And the Gloucestershire club, who host United in five days' time, say the authorities have confirmed they are not looking into the incident.

Speaking on the Forest Green website, Cooper said: "I’m pleased the FA have given such a swift and clear statement on this matter.

“I can assure everybody that nothing like that was said – it’s wrong that Justin’s name was dragged into this. We’re now focused on a really important game against Crewe Alexandra [tomorrow night].

Reports earlier today suggested the FA would review the allegations.

Embleton was sent off after clashing with Cooper and the Orient man later accused the Forest Green boss of making "unacceptable" comments.

After his side's 4-2 home defeat to Cooper's team, Embleton said: “I got told I am an impostor in the environment I am in. I've spent most of my career being an impostor.

‘“I didn't play football or have a football career and I've worked extremely hard to get myself to where I am and where I've been.

“It's a thing that's been thrown at me quite regularly, which doesn't affect me anymore as I quite like it, it's my thing. So, I can accept that bit.

“But to follow that up with 'who do you think you are, Justin Edinburgh?' is something I will never accept.

‘“I got sent off for throwing my chewing gum at him [Cooper] and ultimately that is something I deserve.

“You can’t do that sort of thing, however it was either that or do something a lot more aggressive which would have been even more naive of me and I would probably spend a lot more time in the stands than perhaps I am going to.

"It was the best way for me to deal with it at that time. My blood is still boiling.”

Forest Green chairman Dale Vince defended his manager on Saturday night and said there had been no evidence of the alleged comment.

Writing on Twitter, Vince said: "Mark denies saying this or anything like it, he and Justin were close friends.

"The referee and fourth official have both confirmed this evening that they heard nothing said, and the fact is that Leyton's manager was sent off for throwing something at our bench after the first goal was scored.

"Their manager has to look at himself for the reason for his behaviour."

Orient's much-respected boss Edinburgh died in June after suffering a cardiac arrest.

Embleton began the season in interim charge and recently returned to that position after the short reign of Carl Fletcher.