The following Grand Prix in Portugal proved to be an exciting affair, for all but Ayrton Senna who suffered race long with handling troubles. He ended sixth while Prost retook the championship lead by obtaining his fifth victory of the year. March driver Ivan Capelli secured his first career podium with a brilliant second, with Boutsen once again finishing third in his Benetton. As the field finished the first lap of the race, Prost, who had claimed his second pole of the year (and pulled a psychological ploy on Senna by setting his time early in the final session, then spending the rest of the session lounging in the McLaren pits wearing jeans and a T-shirt, almost daring the Brazilian to beat him), pulled out of Senna's slipstream to pass his teammate for the lead down the straight. In a famous vision, Senna almost pushed his teammate into the pit wall at over , something which didn't please the race winner. This was after Prost had tried to block Senna and pushed him close to the grass during one of the aborted starts.