The next race was in Monaco for the fourth round of the Championship. During the first practice session, Wendlinger exited the tunnel and lost control of the car under braking for the Nouvelle Chicane. The Sauber hit the wall sideways with considerable force. Wendlinger's head struck a water-filled barrier within the metal crash barrier. FIA doctors found Wendlinger unconscious, and although his vital signs were quickly stabilized, he remained in a coma for several weeks and did not drive in a race for the rest of the year. He had planned to make his comeback at the Japanese Grand Prix but pre-race testing revealed his neck was not strong enough.