South Africa all-rounder Chris Morris has said that the SA team is under huge pressure ahead of the fourth ODI on Saturday. "It's do or die for us now. It's natural pressure. If we lose one more, that's the series gone," Morris said. "We'll be fighting for every single ball, every single run out there. So a lot of pressure but what's cricket without pressure? It's boring," added Morris. India leads the series 3-0.