teams all set their cars up to produce the maximum amount of downforce and mechanical grip possible. Prost introduced new front and rear wings, undertray and rear crash structure to Jean Alesi's car. Benetton fitted a revised aerodynamic package with new front and rear wings and sidepods to its B201s. Jaguar ran with a revised rear crash structure to match its new diffuser and new rear wing components and undertray from Saturday's practice sessions. Arrows debuted an elevated nose wing positioned vertically on two uprights over the top of Jos Verstappen's front wing aimed at increasing the maximum amount of downforce available. Jordan introduced a similar modification on Trulli's car; their design was positioned in front of the driver. The devices were examined after Thursday's practice sessions by the FIA technical delegate Jo Bauer, who believed they were an infringement of Formula One regulations. Jordan and Arrows were required to remove the devices for safety reasons, and the stewards warned the two teams that they risked exclusion from the Grand Prix if they were used again. Practice A total of four practice sessions preceded Sunday's race—two one-hour sessions on Thursday, and two 45-minute sessions on Saturday. Both of Thursday's sessions saw dry and warm weather. In the morning practice session, Michael Schumacher set the fastest lap of 1 minute and 21.577 seconds, 0.827 seconds faster than Coulthard in second. The two Jordan cars of Trulli and Heinz-Harald Frentzen, Barrichello, Häkkinen, Olivier Panis of British American Racing (BAR), Ralf Schumacher, Irvine and Alesi followed in the top ten. On a dirty track, Pedro de la Rosa damaged the front left corner of his Jaguar by hitting a barrier at Portier turn, and Tarso Marques spun his Minardi car 180 degrees backwards into a wall at the entry to La Rascasse corner. Since spare cars could not be driven until qualifying on Saturday, neither driver returned to the track for the rest of the session. Häkkinen led the afternoon session with the day's fastest lap, a 1-minute and 19.853 seconds, with Michael Schumacher, Ralf Schumacher, Barrichello, Trulli, Coulthard, Frentzen, Alesi, BAR's Jacques Villeneuve and Williams' Juan Pablo Montoya in positions two through ten. Coulthard struck a barrier at Tabac corner and broke his car's right-front track rod, which was replaced in the pit lane. Fernando Alonso spun his Minardi into a wall at La Rascasse turn and damaged its rear suspension, curtailing