Pupils at these Dublin schools are hoping the Boys in Blue show their Kerry teachers a lesson in how to win an All- Ireland final this weekend.
It was "blue Friday" for schools across the city with kids donning their Dubs jerseys to show support for the team.
With match fever reaching boiling point, it is no wonder there was a gentle slagging for the Kerry teachers who dared to don their own jerseys in the midst of a sea of blue.
The principal of St Colmcille's Senior National School, Lynn Corcoran, from Killarney, and teacher Noramai O'Sullivan, from Kenmare, were flying the flag for the Kingdom at their Knocklyon school.
Lynn admitted that she was in a very small minority as a Kerry supporter at the school, as the match approaches.
She said that there was huge excitement at the mixed school which has over 700 pupils.
"I am wearing my Kerry jersey around the place and I am getting a lot of slagging over that," she said.
She said that if Kerry win, there will definitely be a reprieve on the homework front. "If Dublin win, it will be double homework", she joked.
"As a Kerry woman, I think we will get it over the line alright, they have great spirit and determination," she said about her team's chances on Sunday.
"I will be hoping Kerry do it anyway, but you can never tell when you are up against the Dubs, because you just don't know what they are going to pull out of the bag.
"It is a special rivalry between Dublin and Kerry. But there is great respect at the same time," said Lynn.
She said the school has strong ties to the Dubs - one of its staff members is a Dublin hurler, Shane Durkin, and they also have John Murphy, who was an All-Star hurler for the blues, as well as two other staff members who played Gaelic football for the Dubs, Joanne O'Sullivan and Sorcha Timmins.
The school also has close links with Ballyboden's St Enda's club, said Ms Corcoran.
But the principal insisted she was "quietly confident". JERSEY The deputy principal of the school, Francis Connolly, bucked the trend at the school yesterday by donning his Monaghan jersey.
"He is just waiting for his team to get to an All-Ireland final. He is wearing his jersey, year in and year out," Lynn added.
Meanwhile, in Scoil Bhride junior national school in Donaghmede, Paul Culhane, from Kilflynn, and Aoife Begley, from Listowel, bravely donned their Kerry jerseys.
"We are the only two," said Paul, who has been teaching at the mixed school for nine years.
"I am going to the match. I'm lucky enough to have a ticket," he told the Herald.
"I am confident enough," he said about his team's prospects.
Paul really enjoys teaching at the Dublin school.
"I teach senior infants. One of the girls came up to me, and she said 'Mr Culhane, are you from Germany?'
"I said, 'no, no, I'm from Kerry.' And she said: 'Oh right. And do they speak English down there?'
"So I had to say, 'yes, we speak English down there,'" he said, laughing.
The school has strong links to Trinity Gaels, and the pupils are hoping for a Dubs masterclass in football on Sunday.