Charlie Mulgrew is eager for Celtic to avoid further Italian heartache against AC Milan and keep their European dream alive.
The Bhoys came unstuck against Juventus in the last 16 of last season's competition, and were turned over 2-0 by Milan at the San Siro back in September.
Another setback at Parkhead on Tuesday would end Celtic's hopes of reaching the knockout stages in successive campaigns and cast serious doubt over their involvement in continental football past the turn of the year.
Mulgrew hopes both of those challenges can be taken to the final round of fixtures in Group H - when Celtic go to Barcelona - but acknowledges that they face a tough task against seven-time winners Milan.
He told the Daily Record: "We'll be as positive as we can and look to win because we have to. We'll need to put everything into it just to keep going.
"We know it will be difficult because Milan are a world-class side but we are aware of our task and what we have to do.
"We're becoming more comfortable in the Champions League so we don't want to drop out now, especially after going to the knockout stage last year. It gives us extra motivation to get there again and do better."
Mulgrew also claims that full focus is being given to the Milan tie, with little thought given to the consolation prize of a place in the Europa League - which will go the third-place finishers.
He added: "Europa League is still European football and we would look forward to it if that happened, but our focus is purely on qualifying from this group while it's possible.
"If we win the game against Milan, you never know.
"Qualifying is the aim. You can't say 'Let's get third and we'll have a run in the Europa League'. It doesn't work like that in football.
"We want to finish second and go as far as we can in the Champions League.
"Is it the biggest game of our season? Yes. It's massive. And I can tell you we're all looking forward to it."