Posted by Sabrina B. @gametimegirl

In an unprecedented day of sales, the UFC sold 42,000 tickets for its UFC 129 event, which will be held April 30 at Rogers Centre in Toronto.

The total was considered ‘presale’ tickets, or tickets made available only to those in the UFC fan club. Tickets to the general public do not go on sale until Saturday.

UFC officials had predicted the event likely would set records in attendance and revenue for a North American MMA event and are prepared to open up additional seating at Rogers Centre.

The venue has held more than 60,000 in the past; however, it’s expected the total number of seats made available for UFC 129 will not exceed much more than 50,000.

The current all-time attendance record for a North American MMA event is 42,757, set by a K-1 Dynamite!! card in June 2007, despite evidence that much of that attendance came from unpaid tickets. The top-attended card in UFC history is UFC 124, which drew 23,152 in December in Montreal.

UFC 129 will be headlined by two title fights, both featuring Canadians. George St. Pierre looks to defend his welterweight belt against Jake Shields, and fellow Canadian Mark Hominick faces current featherweight champion Jose Aldo.

Brett Okamoto covers mixed martial arts for ESPN.com.