Kings lose their leader
The seasoned hooker was ruled out of selection following a groin strain sustained in last week's loss to the Boland Cavaliers.
Kings coach Barend Pieterse made four changes to his starting line-up, including two positional changes.
Pieterse appointed scrumhalf Ricky Schroeder as captain, with hooker Mike Willemse the vice-captain.
John Forwood replaces Ferreira at prop.
Siviwe Soyizwapi moves from fullback to right wing, to replace Alcino Isaacs. Johan Tromp moves to fullback from outside centre.
Burton Klaasen who started on the bench last week, will fill outside centre.
Eastern Province Kings: 15 Johan Tromp, 14 Siviwe Soyizwapi, 13 Burton Klaasen, 12 Waylon Murray, 11 Sampie Mastriet, 10 Kobus Marais, 9 Ricky Schroeder (captain), 8 Christiaan de Bruin, 7 Sebastian Ferreira, 6 Vince Jobo, 5 David Antonites, 4 Tazz Fuzani, 3 Vukile Sofisa, 2 Mike Willemse, 1 Justin Forwood.
Replacements: 16 Martin Bezuidenhout, 17 Barend Potgieter, 18 Ettienne Oosthuizen, 19 Luke van der Smit, 20 Jacques Fick, 21 Minenhle Mthethwa, 22 Lungelo Goza.
Date: Friday, August 19
Venue: Loftus Versfeld Stadium, Pretoria
Kick-off: 19.20 (17.20 GMT)
Referee: Rasta Rasivhenge
Assistant referees: Lourens van der Merwe, Ruhan Meiring
TMO: Johan Greeff