MIAMI, May 2 : Ferrari's Charles Leclerc said he had been harsh on Formula One leader Kimi Antonelli after angrily criticising the Italian teenager in the heat of the Miami Grand Prix sprint race on Saturday. Antonelli finished fourth for Mercedes but collected a five-second penalty and was demoted to sixth for repeatedly exceeding track limits. "Kimi is so bad on wheel-to-wheel (racing). He moved under braking. It's unbelievable. We are going to crash," Leclerc, who finished third, exclaimed