Celtic going through in Champions League qualifier would be best night of my life, says Ronny Deila

New manager hopes Scottish champions can overturn 4-1 first-leg defeat to Legia Warsaw

Ronny Deila acknowledged the size of the task he has in rescuing Celtic’s Champions League hopes against Legia Warsaw at Murrayfield by admitting success might make it the best night of his life.

The Scottish side lost 4-1 in Poland last week, with the hosts also missing two penalties. Deila, who took over from Neil Lennon in June, showed he was aware of the magnitude of the task, saying: “It is the same in every club. If you lose it is a disaster – but it’s a bigger disaster here.”

The Norwegian added a personal note: “We have everything to win. I haven’t given up. It’s possible. If we turn this around it will be a massive night and maybe the best night of my life.

“It would be, behind having kids, an unbelievable night. That is what we are wanting, dreaming of, but behind that it needs a good performance.

Deila, who will be without Efe Ambrose after the Nigeria defender was sent off in Poland, added: “I have been thinking a lot and it is important that we get a lot of energy into the game because that was the most disappointing thing last week. At the end of the game we were passive and lacking confidence.”

The former Stromsgodset manager, who denied knowledge of West Bromwich Albion’s reported interest in midfielder Kris Commons, said: “I want to see more enjoyment and energy on the pitch. That’s what I want to see tomorrow: commitment and desire to win; desire to fight for each other and to be a team.”