Martin endured a torrid grand prix in Qatar on Sunday, as a problem with his rear tyre meant he struggled to 10th while title rival Francesco Bagnaia finished second.
The Pramac rider is now 21 points adrift of Bagnaia in the championship, having cut his lead down to seven 24 hours earlier after winning the sprint, and later raged against Michelin for 'stealing' the title from him.
