Bradley Smith faces an anxious wait to determine his fitness for next weekend's home British MotoGP at Silverstone, due to leg injuries sustained in practice for the World Endurance season finale.

The Englishman was making a one-off appearance, his first competitive outing on an R1 since being part of last year's Suzuka winning team, to try and help YART clinch the EWC crown.

But an 'unlucky' incident in free practice at Oschersleben - involving a collision with another rider - left the Monster Yamaha Tech 3 rider with a suspected broken femur.

Fortunately medical checks later confirmed no broken bones, but Smith still required surgery for a large cut to his knee and has some ligament damage.

"I had an MRI scan done on my knee, which showed some ligament damage," Smith said. "Now we are waiting for the specialist to give us some information, which is Doctor Mir from Barcelona.

"He is aware of my injury, is informed and was sent the MRI pictures. As soon as we hear from him, we will be able to put together the right procedure.

"The operation that I had yesterday was just to fix the hole in my leg that was caused by the impact. There are no fractures and we are using the MRI to check any other damage. Once assessed we will be able to plan my recovery process."