OXFORD United are beginning to be treated like a force in Sky Bet League One, says Karl Robinson.

The third tier is as competitive as ever this season and one of the early promotion favourites, Charlton Athletic, visit the Kassam Stadium tomorrow.

United pipped The Addicks to sixth place on goal difference last term, as they reached the play-offs for the second successive year.

And Robinson has noticed a change in attitude in opponents in the early days of the new campaign.

The U’s head coach said: “The proof in the pudding is how Cambridge reacted to a point and Burton only making one change in the cup.

“That’s how big we’re becoming, but we’re not even in that top echelon.

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“We put ourselves under immense pressure to be in the top six, when we’re not even a top-six club yet.

“We know one day we’ll be one of those clubs, we’ll have the power and the financial clout.”

Robinson added: “It’s a chapter in the club’s history that will hopefully be relatively exciting.

“I think we’ve already written an awful lot of paragraphs in our chapter that are very readable.”

In March, Robinson said he wanted to make the U’s a ‘top-30 club in England’ over the next five years.

That came days before it emerged United’s Indonesian investors wanted to buy the majority stake in the club, with board member Anindya Bakrie since saying he wants the deal completed by the end of this month.

But Robinson believes the U’s are already seen differently to when he arrived in March 2018.

He said: “There’s a lot of work going on and the speed is quite incredible.

“We have somehow become a force that everyone wants to beat.

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“Our badge carries a lot of weight.

“That adds pressure, not of some other teams, but the pressure we put on ourselves and it’s a good place to be.”

Robinson places Charlton firmly in that top bracket and the south London outfit are one of several League One teams to have spent much of their history playing in a higher division.

The U’s boss moved to the Kassam Stadium from Charlton, where he had managed since November 2016, and insists the club’s size is underrated.

He said: “I don’t think people truly know how big Charlton are.

“We all talk about how important the club is to the community, it dawns on you once you’re in that bubble.

“These are bigger than most, I’d argue that with anybody.

“People talk about Sheffield Wednesday, Portsmouth, but Charlton’s bigger – they’re massive.

“They know that they’re going to be ultra-competitive.

“A lot of staff I brought in are still there so I know how good they are and how good Nigel (Adkins, Charlton boss) is.”