Tottenham boss Martin Jol insists Dimitar Berbatov is not for sale and warned the Premiership there is more to come from the striker next season.

Berbatov, 26, has earned a host of admirers in his first season at White Hart Lane, with Jol tipping the Bulgaria international to emulate Spurs legends such as Jurgen Klinsmann.

His 21 goals has led to inevitable speculation about a move to a club at the top of the Premiership, a year after Manchester United were interested in buying him from Bayer Leverkusen.

Jol lost Michael Carrick to United last summer but the Dutchman is confident of keeping Berbatov, pointing to the healthy financial figures published earlier in the year meaning Spurs would not need to sell.

"I have no fears - from anybody or any circumstances," said Jol. "The chairman wouldn't sanction it, even if I'd like to. We keep our best players 99 per cent of the time over the last five or six years. I don't see any reason why we should. We made a lot of profit over the last six months and we don't have to sell players."

Berbatov is the latest striker to capture the hearts of Spurs fans. Klinsmann had two spells at White Hart Lane and before him was Gary Lineker and Clive Allen, the latter is still at the club as development coach.

Jol believes Berbatov can become a legend of the club if he plays his part in a successful era.

He said: "Klinsmann was here in '98 and they were almost relegated. So what is a legend? Clive Allen scored 49 in a season. There is still a lot to improve with the team and with Dimitar, he can score 30 or 35 goals in all competitions.

"There is a lot more to come because he's such a good finisher."

Jol was impressed with how Berbatov adapted to the Premiership after a tricky start.

"He noticed in the first couple of months that it was different, so I told him 'welcome to the Premiership'," said the Spurs boss. He did so much work in training and in the gym.

"You can never say you are 100 per cent convinced when you sign a player from abroad, it's a tough league. But talent-wise, everyone in Germany, including Bayern Munich, knew it and would love him."

Even at £10.9million, Berbatov has been hailed as one of the shrewdest signings of the season, with his performances earning the respect of his fellow professionals and a place in the PFA team of the year.

Other managers have been quick to praise the Bulgarian but Jol tries not to discuss his striker with his counterparts.

He added: "I don't want to talk about it with them because maybe they'd agree. I tell them he's lazy!"