Sydney's Moore Park will undergo its biggest combined sporting events in history when it hosts expected sellouts in Saturday night's A-League and Big Bash League derbies.
Around 80,000 fans are expected to converge on the precinct in what will be a battle of the hearts, minds, money,and patience of the city's sporting public.
Three days before the Sydney Sixers' clash with cross-town rivals the Thunder at the SCG, tickets have already been exhausted for the 44,000 capacity venue.
Sixers officials have confirmed 1000 single seats with restricted views, depending on which cricket pitch will be used, will be released on Thursday at 12pm.
The 'Sydney Smash' also attracted a record sellout crowd of 21,768 earlier in the season at Spotless Stadium in Homebush.
Similarly, the A-League contest between Sydney FC and the Wanderers is on track for what is likely to be a sixth-straight sellout between the two teams at Allianz Stadium.
Tickets for both supporter bays have already been snapped up.
"The precinct can handle two capacity crowds. It'll be the biggest sporting event in history at Moore Park. Fans are going to enjoy the atmosphere," Sydney FC boss Tony Pignata told AAP.
"We're the only ones that have got sellouts. There's been double-headers before but I think it'd be close to 80,000 people at the precinct on Saturday night. It's going to be great."
The Sydney derby attracted an A-League record crowd of 61,880 at ANZ Stadium in round one when the Sky Blues thrashed the Wanderers 4-0.
The previous record for the Moore Park precinct is a 78,056 crowd who watched St George win their 10th straight rugby league premiership in 1965 at the SCG.