The Italian icon made sure to praise his former side after overturning the 2-0 deficit to make the quarter-finals.

Gianluigi may have concluded his legendary career with Juventus over the summer, but his affection for the Italian giant knows no end. This was evident for all to see as he made sure to congratulate the Bianconeri after their amazing win over Atletico.

The Serie A giant hosted the Spanish side in the second leg of their round of 16 encounter needing to overturn a 2-0 deficit and overturn it they did. A superb hat-trick from Cristiano -- who else -- sent the club into the quarter-finals via a 3-2 aggregate scoreline.

Two headers and a late penalty were enough to keep the Italians' Champions League dream alive, as their five-time Ballon d'Or winner collected the match ball. Everyone was left in awe after this triumph and their former shot-stopper jumped at the opportunity to praise his former employers and his former boss Allegri in particular.

"Congratulations to all! An undertaking like this is something extraordinary and moving. P.S Great Mr. Allegri!!" the 41-year-old wrote on Instagram.

While the Old Lady booked their spot in the last eight, the same cannot be said for Buffon's PSG. The French champion was dumped out of the competition courtesy of an embarrassing 3-1 loss at home to Man United.

As for Cristiano and Co, they will now wait to find out their opponent for the next round. After that win, though, they can be forgiven for feeling like they are going to lift the title this time around.