John Terry nailed his Celtic colours to the mast as he watched them take on Rangers at Parkhead.
The Chelsea legend is a known enthusiast of Ange Postecoglou's team and even pulled on the green and white hoops for Stiliyan Petrov's charity match against leukemia in 2013.
In 2019 he said it was on his bucket list to attend a European night at Celtic Park.
And he went one better than that on Sunday as he was seen pre-match in the stands.
Donning a Celtic scarf, the former England defender lapped it all up before kick-off.
And he appeared blown away when the customary rendition of You'll Never Walk Alone rung out before the players took to the pitch.
It's not an anthem Terry will be particularly fond of given its' connections to Liverpool, long-time Premier League rivals of his beloved Chelsea.
But he whipped his phone out to film it as the 60,000-strong home crowd made a racket ahead of the huge derby clash.
Celtic went into the game six points clear knowing a win would virtually secure the Premiership title.
