Valentino Rossi has admitted fears that Yamaha teammate Jorge Lorenzo could pip him to the MotoGP title this season.

Rossi currently leads the way in the standings, but Lorenzo has closed the gap to just six points after winning the last three races on the bounce.

"The form of Jorge is bad news for me," Autosport quotes him as saying. "He is very fast. In the first part of the season, I was stronger, but now Jorge is coming back at an incredible pace. He is the only one who can ride at the maximum of the bike and take all the potential from the bike."

Reigning champion Marc Marquez is currently fifth in the world standings.