Johan Mjallby admits Celtic will have to find their shooting boots for next week's Champions League qualifier against HJK Helsinki after Grant Holt's late strike gave Norwich a narrow victory over the Hoops in their pre-season friendly at Parkhead.
The home side passed up on several chances before the Canaries captain pounced near the end to sink the Hoops who have scored just two goals in five pre-season games. Celtic manager Neil Lennon was in Iceland to see HJK Helsinki, the Finnish side coming to Parkhead next Wednesday in the first-leg of the third qualifying round.
Asked if Celtic need to be more clinical next week, Hoops assistant manager Mjallby said: "Definitely. Whatever you say, there are no easy games in Europe nowadays and every team is well organised and usually Scandinavian teams and Finnish teams are physically very strong."
He went on: "Especially at home when you create chances you need to take them. Obviously we start at home and we want to score a few goals to have a wee bit of a comfort before we go over there.
"The good thing was that we created a few chances against good opposition.
"I was disappointed to lose. We had a lot of the ball and we had five or six clear cut chances so we should have scored at least two or three goals.
"It was definitely an improvement, especially the last game (4-0 defeat by Ajax).
"We think we are getting there, we looked sharper and fitter than before."
Defender Kelvin Wilson came off in the first half with shin splints and keeper Lukasz Zaluska was replaced by Fraser Forster just before the break after sustaining a cut eye.
Mjallby said: "Kelvin Wilson has shin splints, I don't know how bad it is, I think he is going to go for a scan. It was just a cut for Lukasz so it is probably going to be just a few stitches, he's a strong boy so he should be back training."