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Ex-Brighton star Bobby Zamora believes Charalampos Kostoulas is reaping the benefits from his new-found professional approach.

Kostoulas, 19, arrived for around £30m from Olympiacos last year and showed glimpses of his potential during his limited appearances.

The Greek teenager took a little time to settle to the Premier League and head coach Fabian Hurzeler even questioned his attitude and dedication to training.

The Brighton boss demanded more and Zamora believes Kostoulas has finally responded in the right way.

The sale of striker Danny Welbeck to Chelsea and injuries to Georginio, Evan Ferguson and Stefanos Tzimas created a chance for Kostoulas this term and he has grasped it.

His opening goal against Coventry showed his creative side and he followed that with clinical strikes against Manchester United and Arsenal.

Kostoulas has an impressive four goals and two assists so far.

"I did work with Babis last year and he's a very, very good talent," said Zamora who stepped down from his coaching role at Brighton at the start of this season.

"[He's] very, very young and I think his first year he was still finding his feet.

"The mentality of the Premier League, the mentality of the changing room, the professionalism of the Premier League in general, I think surprised him.”

Kostoulas was the star in Greece

Zamora, speaking to Sussex World via Cafe Casino, added: "Let me be honest, he's the young star in Greece and as he's gone through he's never had to fall in line.

"Whatever happened, however he behaved, he would always play. He could laugh and he could joke and he could not take things seriously as you really should as an elite player.

"Just coming into the Premier League and everybody saying, 'you can't do this and you can do that', and him working hard at it and trying to focus his mind as a Premier League player.

"That penny has dropped and that professionalism is now there. The manager wouldn't settle for somebody that's not doing that."

Zamora is a huge fan of Kostoulas' creativity but said his ability to get the basics of the centre forward role right has helped his development.

Kostoulas the maverick

"He's the maverick," said Zamora to Sussex World. "I suppose there's a little bit of a maverick about him.

"You don't really know what's going to come. He's one of those players that can produce something out of nothing.

"It's trying to get the consistency of the basics into his game that are needed.

"It's just holding up the play, bringing people into play. But when the areas are there for you to do what you are naturally gifted at, then you can do that.

"But everything else has to be done to make you a whole player. That's work right off the ball.

"When the team intensity, all of that part of the game, the gaffer isn't going to suffer anybody not doing it.

"How the team wants to press. He bought into that. It's so much easier to chase a defender down when you're winning and you're confident. That's great for everybody."