Prop Malherbe, lock Etzebeth, flanker Kolisi and centre De Allende are in contention to represent South Africa at the 2015 Rugby World Cup in England, having all been part of the Springbok squad this season after stellar Vodacom Super Rugby campaigns for the DHL Stormers.
Between them, the quartet have featured in 61 Tests, Etzebeth leading the way with 37 Test appearances since his debut against England in 2012, with Malherbe (six Tests) and Kolisi (11 Tests) making their debuts in 2013 and De Allende (seven caps) playing his first international in 2014.
“Frans Malherbe, Eben Etzebeth, Siya Kolisi and Damian de Allende have all been developed here at Western Province, coming through our youth structures and going on to play Test rugby for South Africa as standout DHL Stormers and DHL Western Province players,” said WP Director of Rugby Gert Smal.