De Allende to bring up his half-ton
The 24-year-old centre made his debut for the Stormers in 2013, and has since established himself as a key player – winning the 2015 South African Super Rugby Player of the Year award.
De Allende will link up with Johnny Kotze in midfield – with co-captain Juan de Jongh sidelined due to a hamstring strain.
Leolin Zas returns from suspension to take Kotze's place on the wing.
The only other change to the backline – which started in the shocking 17-all draw with the Sunwolves in Singapore last week – sees scrumhalf Nic Groom swap places with Louis Schreuder, who starts on the replacements bench.
In the loose trio Schalk Burger will start at No.8, with Nizaam Carr shifting to flank and Rynhardt Elstadt moving to the replacements bench.
Eben Etzebeth makes his return from injury to partner Pieter-Steph du Toit at lock.
There are two changes in the front row – with Oliver Kebble starting at loosehead prop in place of the injured JC Janse van Rensburg.
Mbongeni Mbonambi gets an opportunity to start at hooker – with Siyabonga Ntubeni set to make an impact from the replacements bench.
Stormers: 15 Cheslin Kolbe, 14 Kobus van Wyk, 13 Johnny Kotze, 12 Damian de Allende, 11 Leolin Zas, 10 Jean-Luc du Plessis, 9 Nic Groom, 8 Schalk Burger, 7 Siya Kolisi, 6 Nizaam Carr, 5 Pieter-Steph du Toit, 4 Eben Etzebeth, 3 Frans Malherbe (captain), 2 Mbongeni Mbonambi, 1 Oliver Kebble.
Replacements: 16 Siyabonga Ntubeni, 17 Alistair Vermaak, 18 Vincent Koch, 19 Rynhardt Elstadt, 20 Sikhumbuzo Notshe, 21 Louis Schreuder, 22 Brandon Thomson, 23 Huw Jones.
Date: Saturday, May 21
Venue: Loftus Versfeld, Pretoria
Kick-off: 19.20 (17.20 GMT)
Referee: Ben O'Keeffe
Assistant referees: Glen Jackson, AJ Jacobs
TMO: Johan Greeff
