Reigning MotoGP World Champion Jorge Lorenzo has still not fully recovered from his second big crash of the year in Germany and says he is not 100 per cent fit heading into this weekend's Indianapolis clash.

The Factory Yamaha man will have to contend with three race weekends on the bounce with no time to recover and he also tested alongisde team-mate Valentino Rossi at Brno in the summer break.

“We are returning to the USA and beginning the second half of the year, which may be the toughest. I was able to rest for some days after Laguna Seca and then we went to Brno to make a private test with Yamaha. Those two days gave me an opportunity to check my physical condition," said Lorenzo.

"I’m a bit tired, especially because after two crashes in Assen and Sachsenring I couldn’t recover so much and now we have to manage a long period with three races in a row. I feel better obviously than in Laguna but still need time to recover to 100% and it is not going to be easy because the calendar is so busy and also we have to fight not to lose points. In any case, we go to Indy to give everything despite the circumstances.”