At the San Marino Grand Prix weekend this belief was crushed completely with the serious injuries sustained by Rubens Barrichello in practice and the deaths of Roland Ratzenberger during qualifying and Ayrton Senna in the race on 1 May 1994. Furthermore, Karl Wendlinger was left comatose after a crash two weeks later at the Monaco Grand Prix. The shock from the sudden injuries and deaths was stunning. Not only had two drivers been killed, but one of them was a triple world champion and arguably the best F1 driver at the time. The FIA reacted swiftly and harshly with major changes to be enforced from that year onwards, and it was the beginning of the FIA's push to increase safety in Formula One.