Gennady Golovkin will be back at Madison Square Garden in New York when he takes on David Lemieux in a unification fight later this year.
The WBA Super middleweight champion will take on IBF holder David Lemieux in an explosive showdown on October 17.
Golovkin (33-0-KO30) and Lemieux (34-2-KO31) are two of the biggest punchers out there and ticket sales are already breaking records.
Over 6,000 pre-sale tickets have gone even though 'GGG' has not boxed at the Garden for over a year.
"This record-breaking pre-sale only confirms that this fight will be one of the most exciting of the year as the best meets the best for middleweight supremacy," said Oscar De La Hoya, one of the promoters behind it.
Golovkin was one of the fighters to call out Floyd Mayweather before he confirmed he will be taking on Andre Berto in September, and had been linked with moving up to take on Andre Ward at 168lbs too.
But Lemieux, from Montreal, Canada is the first real threat the middleweight supremo has faced in quite a while.
Lemieux won the vacant IBF title in May, out-pointing Hassan N'Dam N'Jikam over the full championship rounds.
It was only the second time he had boxed over the full 12 rounds and although he lost to Joachim Alcine on points in 2011, he has knocked out 31 of his 36 opponents.