Ireland's Katie Taylor was said to have banked just over $6m (£4.8m) for her rematch with Puerto Rico's Amanda Serrano last year, reportedly the biggest payout in women's boxing history.

Here's what you need to know... Tier scheme now At the moment, when you join the scheme (it's free) you are given sign-up status and rewarded with a voucher for free dough balls. You then have to ...