Alesi debuted in the 1989 French Grand Prix at Paul Ricard in a Tyrrell-Ford, replacing Michele Alboreto and finishing fourth, having run as high as second during the race. Ken Tyrrell was sufficiently impressed to give him an eighteen-month contract. He drove most of the rest of the season for Tyrrell while continuing his successful Formula 3000 campaign, (occasionally giving the car up in favour of Johnny Herbert when Formula 3000 clashed), scoring points again at the Italian and Spanish Grands Prix.