Kimi Antonelli, the 19-year-old Mercedes driver, set the fastest time in the second practice session for the Belgian Grand Prix, outpacing McLaren's Lando Norris by 0.190 seconds.Norris, who faces a 10-place grid penalty for Sunday's race after using a new battery, struggled with his performance.Red Bull's Max Verstappen finished third, improving on his earlier time after switching to the traditional rear wing.Ferrari's Lewis Hamilton came fourth, while George Russell of Mercedes lagged behind in eighth.The session was interrupted by a red flag after Pierre Gasly's Alpine crashed into barriers, though he was unharmed.Antonelli's best lap of 1:45.944 seconds highlighted his dominance, with Verstappen and Hamilton close behind.The practice session set the stage for the upcoming race, with teams adjusting strategies ahead of the weekend's events.