Mayweather vs Chalmers is a disaster as the card was delayed by O2 Arena, which was almost empty, and thousands of tickets that were not sold

THE undercard of Floyd Mayweather vs Aaron Chalmers was delayed at a virtually empty O2 Arena tonight.

That’s after promoters struggled to sell tickets for Saturday’s exhibition bout in London.

Mayweather is fighting for the first time in the UK after retiring with a perfect 50-0 record.

Ex-Geordie Shore star and MMA fighter Chalmers stepped in after Mayweather’s original opponent Liam Smith pulled out.

But punters were not left convinced by the quick-fire announcement.

And plenty of tickets were still on sale for the event last night, with thousands of seats in the 20,000-capacity arena available.

Some boxing fans were even offered 20 per cent discounts as promoters desperately attempted to offload tickets.

Yet that too did not tempt punters, with the O2 barely filled when the undercard was meant to start at 8pm.

And with so little bums on seats, kick-off was delayed to allow more fans to drift in ahead of the main event.

Regular prices for tickets ranged from around £141.50 to £1,038,50.

But even a discount did little to convince fans it would be a worthwhile purchase.

Indeed, even the event livestream didn’t start until 8.15pm, half an hour after it was meant to be up.

Punters had to pay £24.88 to watch it on The Zeus Network.