ONE by one, Jose Mourinho worked his way around the Bradford City dressing room.

The presence of the Special One to offer his personal congratulations added another layer to the already surreal atmosphere.

As Andrew Davies later revealed, Mourinho praised City for their large, ahem, “cojones” after a result that rocked the football world.

But one of those Chelsea-bashing heroes was conspicuous by his absence.

Andy Halliday was still submerged in the media scrum in the stand as Mourinho did his rounds and pressed the Bantam flesh.

Tomorrow will be the one-year anniversary of a giant-killing that many say will go down as the greatest in FA Cup history.

Halliday, whose effortlessly-struck goal from the edge of the penalty area had fired City in front, was a natural target for the press corps – this correspondent included.

So he stood up the biggest Premier League name of the time.

“I can’t believe I missed Jose,” admitted Halliday this week as he willingly recalled his most precious football memory with the Telegraph & Argus.

“But because of the goal I had to do the media interviews and was still outside. I didn’t know he’d been in until the boys told me after.

“I was a bit gutted - it was probably my one regret of the day; but it was only a small one.”

You sense any disappointment was shrugged off before Halliday had even hit the “party bus” back to West Yorkshire. By that point, the sheer magnitude of what the Bantams had just pulled off was still sinking in.

Twelve months on, you could argue that remains the case.

Halliday said: “I’m only 24 but I don’t think I’ll ever top that moment in my career. Even if I scored the winning goal in a cup final, that might not beat it.

“Because it was such a massive goal for me, it felt like it was shown everywhere – it shook the world if you like.

“I don’t know how long the FA Cup has been going – is it 126 years? And people are saying that was the biggest shock of all time. How can you possibly top that?

“We all know the FA Cup is famous for its shocks but not one on that scale. Everybody still talks about it, even the boys up here in Scotland.

“As soon as I signed for Rangers, the first thing they were all asking was ‘what about that game at Chelsea? ’You can’t escape it and I wouldn’t want to.

“I don’t mind. I never get bored of talking about it – although people might be a bit fed up of hearing me going on!

“You still see our goals flying in on every advert for the FA Cup. It’s a surreal experience even now.”

Chelsea’s current Stamford Bridge form may be nothing to write home about – four wins and four defeats in 12 games.

But in January 2015, they were invincible on their own manor. Nobody won there in the Premier League that season as Mourinho’s men marched towards another title.

“They were by far the best team in England at that stage,” added Halliday, who has a framed Didier Drogba shirt as a permanent reminder in his Glasgow home.

“I looked at Mourinho’s record afterwards and I think they’d only been beaten at Stamford Bridge three times with him as manager ever. That sums up the feat we achieved that day.

“There’s always that little bit of optimism before any game but we knew we were going there with very slim hopes. No Premier League teams could beat them away so why should we?

“I remember when we were 2-0 down just hoping we could keep it at two. I’d have taken that, although it would have been nice to get a goal for the 6,000 fans and give them something to remember.

“But the second half was so dominant. You won’t have seen a better display from an away team at Stamford Bridge for the rest of the season.

“Winning 4-2 was something else but nobody could say it wasn’t justified. The spirit we showed was just incredible.”

Halliday’s goal was the last of his three for City from 32 appearances. He did not start the next round against Sunderland but was back in the side the night the dream finally died in the quarter-final replay at Reading.

He said: “I look back at my time at Bradford, it was a good chance to play football and I was there for just over six months. It was short but sweet.

“At the end of the day, there were quite a lot of lows. We could have got two Wembley visits that year, which would have been a great record on my CV.

“We were fifth in the league, in a play-off position and in the quarter-finals of the FA Cup.

“Our aim was always to get promotion to the Championship. I think that’s the proper status of the club.

“We had a really good chance to do it and not reaching the play-offs was my biggest disappointment last season. But that cup run was something I will never forget in my career.

“Everybody talks about Chelsea but you shouldn’t forget what we did to Sunderland and Millwall.

“We beat Championship opposition 4-0 at home and it was four going on seven. We battered them.

“We put in another dominant display to beat Sunderland. We were all over them.

“Then we got what we thought was a great draw at home to Reading but missed a big chance. That was hard to take.

“But Bradford is still the first result I look out for. I keep in contact with a lot of the boys from my time.

“You see how many season-tickets they’ve sold and in that division that’s nothing short of remarkable.

“But that shows the stature of the club and I really hope they can get into the play-offs this time.”

After his release from Valley Parade, Halliday’s summer switch to Rangers fulfilled a boyhood dream.

He was born in Copland Road, just a few hundred yards from one of the main stands at Ibrox. His family are Rangers through and through – his mum originally wanted to call him Mark after Hateley, the rampaging centre forward of the time.

The move has more than matched expectations so far. Halliday has played every game as Mark Warburton’s side set the pace in the Scottish Championship.

And last week he signed a new long-term deal that will tie him to the Gers until 2020.

“That will keep me at the club hopefully to get them back in the SPL and up there and then maybe into Europe as well.”

Life is clearly very good. But it will have to go some to be as special as this time last year.