Former MotoGP champion Jorge Lorenzo believes rookie Johann Zarco needs to exercise more caution around the track.
Zarco is enjoying a great start to his first MotoGP season, as he lead the opening race for a short period and has since notched up two fifth place finishes and an impressive fourth last time out at Jerez.
In Spain, the Frenchman was aggressive in the corners, pushing his way up the field before Lorenzo would pip him for third place.
While Lorenzo has been impressed with the way Zarco has handled his Yamaha machine, the three-time MotoGP champion urged the rookie to be a bit more careful.
"I like a lot the attitude of Johann because he thinks about racing, he trains a lot and he's very determined on the bike," the 30-year-old told motorsport.com.
"If he was world champion two times in Moto2, that's because he's good, very good.
"Obviously, the Yamaha for a rookie gives you a lot of confidence and it’s an easy bike. But for sure, he’s very determined, very fast – and sometimes a little bit too determined, especially when he is fighting with another rider.
"He needs to be a little bit more careful because these bikes are bigger and they have more inertia than the Moto2 bikes. But apart from that, I like a lot his attitude, and he’s a really good rider."