SpringboksSpringbok legend Victor Matfield believes coach Rassie Erasmus will ensure his squad is at peak performance for the upcoming Greatest Rivalry tour against the All Blacks in August. "I think the thing is with Rassie, everyone's under pressure," Matfield said. And I think that's why we see some of our senior players performing really well every week. So I think everyone is under pressure to perform, even if you're Siya Kolisi or Eben Etzebeth." "So I think Siya Kolisi is still very important for our squad."