Mikael Lustig insists their Scottish Cup game against Inverness is the biggest match of their season
The Hoops already have the Betfred Cup in the bag, while their 27-point lead at the top of the Premiership makes the title race all but sewn up.
That means defeat in today’s fifth-round clash at Parkhead would ruin their key objective of a clean sweep.
When asked if the cup tie had become Celtic’s most important game of the campaign because of their league dominance, defender Lustig replied: “Yes, absolutely, of course.
“The league looks really good but the main thing now is the cup. We want to win it really bad.
Celtic are still on course for the treble
“It’s a massive game. If we lose, we are out. So we need to win.
“A treble is something special. Not many teams have done it in Scotland or anywhere in the world. You want to be a part of that.
“We go into most games as favourites and we have done really well so far. We are still hungry to break some records in the league as well.”
Brendan Rodgers’ men are bidding to become only the fourth Celtic team to secure a treble.
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They are also on course to go through the Premiership campaign unbeaten and secure a record points haul. Inverness are the only domestic side to have denied Celtic a win this season, when they drew 2-2 in September.
Lustig added: “Of course we are aware it was Inverness that we drew against, but we faced them after that and we won.”
Lustig penned a new deal last month keeping him at the club until May 2019.
The Swede said: “I really like playing for this club and what’s going on at this club right now seems fun and I want to be a part of it.”