Photo gallery: 21/11. Las Vegas Grand Prix, Friday

Felipe Massa is pleased with the court's decision. Following preliminary hearings, Judge Robert Jay dismissed Felipe Massa's lawsuit against the FIA but upheld the suit against Bernie Ecclestone seeking £60 million in compensation. The decision satisfied the former Ferrari driver, he said in a statement posted on social media. Leclerc: I know which direction to take with the car Charles Leclerc topped the first practice in Las Vegas and posted the third-fastest time in the second session, but Lewis Hamilton also said he was happy with the car, even though he finished the day in tenth place... They replaced the exhaust system on three cars. The FIA confirmed the replacement of the exhaust system on the Racing Bulls and Sauber cars. Isola: The condition of the track was rapidly improving. Pirelli are satisfied with the performance of the tyres in Las Vegas. After the session was moved two hours earlier, it wasn't as cold, and the condition of the asphalt quickly improved… Helmut Marko: Norris's time surprised me Lando Norris topped the times in the second free practice session in Las Vegas. Norris’s advantage over Max Verstappen was half a second, and such a speed difference raised questions for Red Bull’s motorsport advisor Helmut Marko. Charles Leclerc avoided penalties. In the final minutes of the second free-practice session at the Las Vegas Grand Prix, Charles Leclerc stopped off the track due to gearbox problems. After the session it emerged that the Ferrari driver's actions are being investigated by the stewards, as he is alleged to have breached paragraph 26.5 of the Sporting Regulations.