Still, 80,000 seats is a lot to shift and in today’s environment, only the top heavyweights, plus a handful of other stars including Saul ‘Canelo’ Alvarez and Naoya Inoue can hit such heights.
For Taylor, 39, and her team to have ambitions to command such an audience is evidence of the reverence in which she is held.
After Friday’s news conference, the Bray native and team set off on a four-day promotional tour around the island of Ireland, beginning in her home town.
It may be a farewell, but a test and not a testimonial is how Taylor wants to sign off.
The opportunity to regain the WBC portion of the light-welterweight title [which was made vacant after last year’s Serrano win] and retire undisputed is the dream.
But she has no designs on getting swept up in the emotion with undefeated Frenchwoman Flora Pili standing in her way.
The Croke Park door appeared shut when an agreement could not be reached between Hearn and stadium authorities three years ago, so what has changed?
With costs to hire the stadium “twice as much as Wembley” according to the Matchroom chairman, it was difficult to see how the impasse would be broken.
For the company there is “not a whole lot financially” to be gained, but just as the rematch between Carl Froch and George Groves at Wembley Stadium in 2014 proved a big night for Matchroom, 80,000 at Croke Park can do likewise according to Hearn.
“That a female is fighting in front of 80,000 people, I think it’s the greatest moment of our [Matchroom’s] boxing history,” he said.
“We’re not going to be making much money on the night, but this is about more than that. My dad [Barry, Matchroom founder and president] might kill me, but what does it really matter what we make on a night like this?
“What we leave with is something we’ll never forget and also it’s important for the brand of our business.”