Johan Mjallby, the Celtic assistant manager, last night moved to calm supporters' worries about Neil Lennon leaving the club after the Scottish Cup final.

Lennon had been vague about his intentions in an interview on BBC's Football Focus last weekend and he will meet with major shareholder Dermot Desmond after the cup final on May 26.

That prompted speculation that after three years in charge the 41-year-old may be restless for a fresh challenge, almost certainly in English football. Lennon has won two SPL titles and a Scottish Cup with Celtic as well as beating Barcelona and reaching the last 16 of the Champions League this season. He will win the double if Celtic defeat Hibernian in the cup final.

According to Mjallby, though, there was unfinished business at Parkhead for Lennon, including trying to become only the third Celtic manager after Jock Stein and Martin O'Neill to win the domestic treble.

He said: "What he wants to do in the future and what he is looking for in his career are questions for Neil, but I'm quite sure he's very happy here. He works for a club he loves and where he's spent so many years."

"You can always do more," said Mjallby. "We haven't won the treble and we could go further in Europe. Right now, all our focus is on winning the double. We're in the cup final and what's gone before is in the past.

"What we did in Europe was a great achievement but we've got to look forward. There is a lot of work that's been done behind the scenes, planning the pre-season. We are also talking about players who are leaving and players we are looking for.

"I don't really know what goes on in his head all the time. We mostly speak about our team, who we work for right now, and what we're going to do for the next game or in training. I wouldn't be surprised if there is interest in him [from other clubs], but I would be surprised if he was not here next season. The treble is a temptation, but it's a very hard thing to do.

"Here you have a chance to qualify for the Champions League each year, more of less, if you win the league. Playing in Europe is great for anyone in management as well as the players as well.