Celtic sit top of the Scottish Premiership after Saturday's win over St. Johnstone, but now face a much tougher challenge later this week.
Ronny Deila's men are in Europa League action on Thursday, taking on Italian giants Inter Milan in the first leg of their last 32 clash.
The first game will be in Glasgow, and Celtic will be looking to get on the front foot against an Inter side who have struggled since winning the Champions League back in 2010.
The battle at Celtic Park is likely to garner plenty of interest, and Hull City winger Robert Snodgrass has spoken about the game, as reported by the Daily Mail.
The 27-year-old ex-Leeds United wide man is currently out injured with a dislocated kneecap which he suffered just 40 minutes into his Hull debut.
Snodgrass, a Scottish international, played alongside Celtic striker Leigh Griffiths at Livingston, and believes that Bhoys manager Deila must start Griffiths against Inter.
"You need to start him as he's on fire just now," Snodgrass said. 'I've watched him and he's working hard for the team. He should have had four goals in the first 45 minutes on Saturday (in the 2-1 win at St Johnstone) so I think you need to play him. He's the only player in the Celtic frontline that can stretch the defence.
"(Anthony) Stokes, Guidetti and (Kris) Commons like the ball to come to feet. They are more like number 10s. Leigh is the only one that can stretch a defence and push them back against Inter," he added.
Griffiths, 24, has plenty of pace, and has hit five goals in his last eight games for Celtic, pushing himself to the top of the pecking order up front, ahead of John Guidetti and Stefan Scepovic.
Given his recent form, he should be one of the first names on Deila's team sheet to face Inter - and Roberto Mancini's men won't be looking forward to facing him.