The only change to the Stormers backline from last weekend sees Gelant start at fullback, with Damian Willemse named as one of two backs on the replacements bench this week.
Stormers coach John Dobson said he is looking forward to seeing the impact that Gelant and Willemse can make on Saturday, having switched roles this week.
“Warrick was always going to start this game as per our plan and having someone like Damian on the bench affords us the luxury of an extra forward replacement. Both of them are in incredible form and will play vital roles on Saturday.
“After starting the year with two away games, the team is keen to get out there in front of our faithful supporters at DHL Stadium and deliver a worthy performance at home,” he added.
Veteran Stormers prop set for milestone
Prop Brok Harris will reach 100 games for the Stormers when he starts at tighthead prop in one of two changes to the starting line-up for the coastal clash, which kicks off at 17:05 on Saturday.
Having made his Stormers debut back in 2007, Harris played 93 Super Rugby games and also brought up a century of Western Province caps, before leaving to join the Dragons in 2015.
Having played over 100 games for the Welsh side, Harris returned to South Africa and got involved as a scrum consultant with the Stormers before being used as injury cover for the Vodacom United Rugby Championship campaign. He has played on both sides of the scrum for the Stormers this season and will line up alongside captain Steven Kitshoff and hooker Scarra Ntubeni in a front row which boasts almost 300 Stormers caps between them.
Utility forward Ben-Jason Dixon returns from injury and will make his first United Rugby Championship appearance when he takes the field.
Dobson paid tribute to Harris, who he said has always gone above and beyond the call of duty for his team.
“We brought Brok in as a scrum consultant this season, hoping to benefit from his knowledge of the United Rugby Championship teams and conditions. His performances on the pitch have been remarkable and there is nobody who deserves this milestone more than him,” he said.
Stormers: 15 Warrick Gelant, 14 Angelo Davids, 13 Ruhan Nel, 12 Dan du Plessis, 11 Seabelo Senatla, 10 Manie Libbok, 9 Herschel Jantjies, 8 Hacjivah Dayimani, 7 Ernst van Rhyn, 6 Deon Fourie, 5 Marvin Orie, 4 Adre Smith, 3 Brok Harris, 2 Scarra Ntubeni, 1 Steven Kitshoff (captain).
Replacements: 16 Andre-Hugo Venter, 17 Leon Lyons, 18 Sazi Sandi, 19 Ben-Jason Dixon, 20 Marcel Theunissen, 21 Nama Xaba, 22 Paul de Wet, 23 Damian Willemse.