The Reserves will be out to finish strong and show they have grown this season, but will need to bring their strength against what will be a physically imposing Hammers side, who are unrelenting and unforgiving in their attacks.
The Reserves should be able to push the Hammers though if they can find their creative form and make their opposition chase them around the park, putting into practice the skills learnt in challenging some of the more experienced sides throughout the Western Premiership season.
The feature match of the Cup knockouts will follow at 2.30pm with Devon Homes Wanganui Athletic looking to put the City Wanderers in their place in what promises to be one of the most hotly contested matches to grave the No1 pitch this season.
The City Wanderers took out the local Division One competition and is largely made up of premier division players from the previous season, and with rumours swirling they'll be looking to re-enter the touring leagues in 2017, they'll certainly be out to show that they've got what it takes to foot it.
There will be no love lost between the two sides, with not just a finals berth on the line but ultimate bragging rights, so this match will certainly be a task for referee Matt Stoneman to keep under control and ensure the battle stays within the realms of a football match.
In the Charity Plate semi-finals, the 12.30pm match between the Marist Bhoys and the Rivercity Braves looks to be a great battle between two sides with plenty of talent to see them through.
The Braves have historically been a team who play with their hearts on their sleeves and have a long record of upsetting sides that don't take them seriously, while the Bhoys had a dream run in the round-robin legs - sitting atop the table for the majority of the rounds.
Either side deserves to have their place in the finals, and it will come down to which team wants it the most for the full 90-minute encounter.
At 2.30pm, Marist Celtic face off against St Anthony's Castlecliff - rejuvenating what has become a respectful rivalry between the two teams over the past few seasons.
Celtic will be smarting from their near miss at making the Cup finals last weekend, but will be setting their sights on the Plate, and hoping to take the initiative early in the game to keep the Saints from getting into the game.
The Saints too will be hurting after what has not been the season they were hoping for, and are out to prove they're still a team to be feared by getting one over their rivals in green.
The remaining semi-finals of the day will be for the Charity Bowl, with the 12.30pm match between the City Thirsties and the Athletic Cosmos sure to be one to keep an eye on as the youthful exuberance of the Thirsties, and their never say die attitude, have likely met their match in the weathered experience and possession-based style of play from the Cosmos.
Both sides know how to close out a game, but with no match next week for the loser, the battle between youth and experience will be a contest producing some excitement.
The Athletic Weekenders and the Marist Shamrocks go up against each other at 2.30pm in the other semifinal, with a fledgling rivalry between the two sides guaranteeing fireworks.
The Shamrocks are in their first year of existence, yet hold a slight advantage with one win and a draw when these two teams met during the regular season.
The Weekenders, though, will be out to prove a point for themselves, and have a good history of performing well in the Charity competitions.
With a good mix of youth and experience within the side, this game is shaping up to be a truly epic match between two teams determined to show what they are made of.