"No one has won the A-League from outside the top 2 at the end of the regular season - this is our chance to finish in the top two and give ourselves the best possible chance of making our first ever grand final.
"This game has all the hallmarks of being a classic finals football match with both clubs keen on securing the second position."
In 2009-10, in the Wellington Phoenix's first foray into finals football, Westpac Stadium hosted crowds of 24,000 and 33,000.
Both those matches were filled with drama and tension with the Phoenix winning both in extraordinary circumstances.
Dome said Sunday's match promises to have all the excitement of those finals matches.
"There is no doubt to clubs want that second place spot and both will be going all out to get the three points because of the advantage you get from finishing inside the top two," he said.
"The atmosphere at those matches was incredible - this match against Sydney promises to have all that drama and tension as well.
"This game is a huge one for Wellington, for the city and the club and a result in this match sets up us for the best possible chances of progressing well in the finals series.
Head Coach Ernie Merrick said games like this are what football is all about.
"We have played 26 games to get to this point and Sunday is going to be very exciting," Merrick said.
"The win over the Mariners was dramatic and it was our supporters that got us over the line for a 95th minute win.
"When we were 2-0 down they never stopped chanting and singing and hopefully we can repay them by producing something special against Sydney."
At A Glance
Round 27, Wellington Phoenix FC v Sydney FC, Sunday 26 April, 5pm
No team outside the top 2 as at the end of the regular season has won the A-League
Statistically, the second placed team has a 70% chance of winning the A-League
In season 2009-10, the Wellington Phoenix had two elimination finals, getting 24,267 and 32,792 at Westpac Stadium.
In elimination final 1 in season 2009-10, the Wellington Phoenix beat Perth Glory 4-2 in a dramatic penalty shoot-out.
In elimination final 2 in season 2009-10, the Wellington Phoenix beat Newcastle Jets 3-1, with Paul Ifill (105 mins) and Eugene Dadi (115 mins) scoring in extra time
Finals 101
Week 1: Top 2 teams at the end of the regular season miss the first week and go straight through to the Semi-Finals on 8 May and 10 May.
Week 1: Elimination Finals made up of teams who finished in positions 3 through 6. Losers in first week are eliminated from the Finals series.
Week 2: Melbourne Victory (top placed team) play the lowest placed team in the regular season who won in the Elimination Finals
Week 2: The second placed team as at the end of the regular season plays the highest placed team at the end of the regular season who won in the Elimination Finals.
Week 3: Two winners of the Semi Finals meet in the Grand Final on 17 May
No team outside the top 2 as at the end of the regular season has won the A-League
Statistically, the second placed team has a 70% chance of making the Grand Final
