As is the All-Ireland tradition, the victorious team hit the town on Sunday after beating Meath in Croke Park.
After a celebration around the pubs of the city, it seems members of the Dublin team bumped into the Harry Potter star on Grafton Street, where he was more than delighted to pose for photos with the jubilant team.
It didn’t end there however, and Daniel having bonded with the boys in blue, decided to take a taxi with them back to the house of captain David Byrne in Dundrum, where one almighty session got underway.
Niall Walsh, a member of the team, explained the story on his Facebook page, clearly a little tired and emotional after the celebrations:
“Walkin down Grafton Street round 3ish bump into Harry Potter head gone lookin for the party, get few pics, then into a taxi to Capt David Byrnes for the after-sesh .”
Daniel is seen in photos on Facebook, posing with the Tom Markham Cup and in the tradition of a cup win, drinking out of it in Byrne’s living room.
One source told a paper: "The lads told him why they were out celebrating and I think he trusted them because he felt they were big in Ireland."
Last year Radcliffe spoke of his battle with alcohol, and admitted that he 'blacked out' after drinking, so decided to become teetotal in 2010.
The 22-year-old star said: "My life is a lot better and less chaotic since I stopped drinking."
"I was living in constant fear of who I'd meet, what I might have said to them, what I might have done with them, so I would stay in my apartment for days drinking alone."