While the home side are on the brink of sealing their place in the Finals Series, the visitors must win and hope other results go their way in order to break into the top six.
Having spent the majority of their first-ever A-League campaign in the top six, Macarthur are now attempting to turn a good season into a history-making one.
Ante Milicic's side have prevailed in three of their last five fixtures to move to the brink of an appearance in the Finals Series, effectively putting them four games away from pulling off a monumental surprise.
Milicic will first want to get their game with Phoenix out of the way before contemplating future glory, but this team have lost just one of eight matches.
While just one clean sheet has been recorded during that period, Macarthur have found ways to remain in the majority of their matches and pick up valuable points.
Although he failed to score in their meetings with Central Coast Mariners and Western United, Matt Derbyshire has netted 14 goals for Bulls this season.
Earning a point against Phoenix will not be regarded as a foregone conclusion, with their next opponents unbeaten in 10 encounters.
Five victories and five draws have kept Ufuk Talay's team in with an outside chance of earning a spot in the Finals Series.
However, a number of results must go their way, and Talay will prefer to focus on his team's upcoming fixture rather than overthinking the permutations.
Talay has been left ruing Phoenix's failure to overcome Perth Glory at the weekend, the New-Zealand-based side blowing a 1-0 lead before eventually registering a 2-2 draw.
Having made substitutions at regular intervals last time out, Milicic could make a number of alterations to his Macarthur XI.
Despite preferring to keep with a settled Phoenix lineup, Talay may also bring in a couple of fresh faces.
Macarthur possible starting lineup:
Federici; Franjic, McGing, Susnjar, Golec; Martis, Milligan; Susaeta, M'Mombwa, Najjar; Derbyshire
Wellington Phoenix possible starting lineup:
Sail; Fenton, Taylor, Payne, Sutton; Ball, Devlin, Lewis, Sotirio; Davila, Hemed
We say: Macarthur 2-1 Wellington Phoenix
On the back of putting together one of the longest unbeaten streaks in the division, Phoenix will feel confident in pushing for all three points from this fixture.
Nevertheless, we still expect Macarthur to take the chance to move into third spot, earning their fourth win in six in the process.