Celtic are in danger of crashing out of the Champions League after a home defeat to Dinamo Moscow.
Bhoys fall to shock defeat at home
Tony Mowbray's first taste of competitive football at Celtic was a bitter one as his side crashed to a narrow defeat at home to Dinamo Moscow in the first leg of their UEFA Champions League third qualifying round tie at Parkhead.
The Bhoys, try as they might, couldn't bounce back from teenager Alexander Kokorin's early blow.
The 18-year-old struck on just seven minutes after picking up on Alexander Kerzhakov's impressive cross from the left to slot past Hoops keeper Artur Boruc.
Bhoys fans had hoped for much more from their side after a promising run of pre-season form which saw them unbeaten in four games.
However, with the Russian side now holding a clear advantage heading into a tricky tie in Moscow next week, they face the harsh prospect of dropping to the not-so-glamorous Europa League.
Early blow
It took only seven minutes for the Parkhead supporters and Mowbray to be handed a reality check by the visitors, who, with 15 Russian league games under their belt, looked sharp from the kick-off.
From Kerzhakov's cross, Kokorin nipped in to toe-poke between Artur Boruc's legs from around six yards to silence the home fans.
The Parkhead side struggled to cope with the sheer speed of Dinamo and, in the 14th minute, midfielder Dmitry Kombarov all too easily whipped a terrific ball in from the left only to see his twin brother Kirill Kombarov's volley slip just inches past Boruc's right-hand post.
Celtic's first real effort on goal came midway through the first half but Marc-Antoine Fortune's turn and drive from 10 yards was easily saved by Dinamo keeper Vladimir Gabulov.
Mowbray's men continued to battle although Fortune was not having the best of luck. His back-post volley, after Aiden McGeady's cross from the right had ended up at his feet, was easily saved by Gabulov.
However, just 60 seconds later, in the 27th minute, the former Nancy striker missed a sitter from three yards when Shaun Maloney set him up, Fortune failing to hit the target as he stretched at the far post.
It was a compelling, enthralling game. Dinamo's Australia midfielder Luke Wilkshire had another long-range effort on goal after the Celtic midfield temporarily went missing, seconds before Scott McDonald's point-blank drive at the other end was parried by Gabulov.
The Glasgow giants finished the first half on top but Massimo Donati's hopeful long-range drive, which went yards over, was symptomatic of their threat.
Target
Celtic came out after the break needing to score at least two to boost their chances in next week's second leg in Moscow.
And with little more than a minute played of a whirlwind restart, Dinamo stopper Denis Kolodin had to clear McDonald's header off the line after the Australia international had leapt at the back post to knock Maloney's cross past Gabulov.
The Parkhead side had picked up the pace of the game but, in throwing players forward, they left themselves open to the counter although the visitors appeared happy to sit and hold their lead.
A blue defensive wall met the Celtic players as they pushed and probed and, in Kerzhakov, Dinamo had the perfect out-ball.
Mowbray replaced McDonald and Fortune with Chris Killen and Georgios Samaras on the hour mark in a move that signalled a hint of desperation and a change of tactics, to a more robust approach.
Danny Fox then replaced Donati to make his competitive Celtic debut after signing from Coventry at the weekend but the home fans were becoming increasingly irate as the second half unfolded.
The hosts pushed with less conviction with each passing minute, typified in the 74th minute when Fox headed high over from Andreas Hinkel's searching cross, before Killen headed wide from a Fox corner.
With five minutes remaining Boruc was called in to action to make a fine block from Dinamo substitute Fedor Smolov, on for Kokorin, seconds before Samaras headed in to the arms of Gabulov.
When the final whistle sounded, it may just also have signalled the end of Celtic's Champions League hopes this season.