Celtic legend Scott Brown couldn't resist a ruthless troll on ex-Rangers striker Kris Boyd live on Sky Sports on Sunday.
The pair were in the studio at Parkhead covering the Scottish Premiership champions' first competitive fixture of the new season.
Celtic eventually won the game 1-0 thanks to Luke McCowan's late strike.
Before the match, the league flag was unfurled by club legend Paul McStay.
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Brown was asked in the build-up about his experiences of flag day.
He couldn't resist a dig at Boyd in his answer: "It's amazing because you know all that hard work from the season before has to start all over again," said the current Ayr United boss.
"It's one of those days, it's great for the fans, it's great for everyone to come together."
"Boydy's not used to this, obviously in a long, long time," Brown then joked.
"He's delighted to be here. We've had a real good chat about how good this place is and how much it means to you, haven't we?"
🗣️ “What does flag day mean for a player?” 😬 “[Kris] Boyd isn’t used to it. It’s been a long, long time” Scott Brown on what today will mean for Falkirk & Celtic, as both sides will unfurl their title-winning flags ⬇️ pic.twitter.com/ywqOKVkxJq
— Sky Sports Scotland (@ScotlandSky) August 3, 2025
Boyd then replied: "It's nice to see you've changed, you can talk some rubbish, wow."
With their, albeit narrow, victory on Sunday, Celtic moved two points clear of city rivals Rangers on the opening weekend of the new season.
Next up, Brendan Rodgers takes his team to face Aberdeen at Pittodrie on Sunday.
