The Bulgarian may be trying to inspire the Scottish Premiership side as they look to reach the group-stages of the competition this time around.
Perhaps feeling that Celtic are in need of some inspiration ahead of the second-leg of their Champions League second qualifying round tie with Lincoln Red Imps, Stiliyan Petrov has suggested that the Hoops' stunning win against Juventus in the competition 15 years ago was one of the main highlights from his Parkhead career, the Evening Times reports.
The Bulgarian was enjoying his third season with the Scottish Premiership side when they reached the group-stages of the competition for the first time.
However, they faced a very difficult task trying to reach the second group-stage after they were drawn alongside the Old Lady and Porto, who would both go on to contest finals in the competition during the following two seasons.
Henrik Larsson's goal proved to be the winner in the 4-3 win
And while the Bhoys ultimately failed to get out of the group - though they managed to secure an impressive nine points from their six games - it was the clash against Juve that continues to stick in Petrov's mind.
"For example, the night we beat Juventus 4-3 in 2001 was a particular highlight. The atmosphere was unbelievable. It definitely brings the best out in players," he told the Evening Times.
Chris Sutton scored twice during the win
While Brendan Rodgers' men should have little problem overcoming Lincoln and booking their place in the third qualifying round, they may still need reminding about what it could be like to take part in a huge European night at Celtic Park as the defeat in Gibraltar will have undoubtedly knocked their confidence.
Although looking past Lincoln could be a mistake, the opportunity to reach the group-stages and create their own career highlight against one of the biggest sides in Europe should not be far from the players' minds in the coming weeks as it may give them the inspiration they need to progress beyond the preliminary stages.
Current Celtic manager Brendan Rodgers