While Marquez does not dismiss the credentials of Honda teammate Pedrosa and the evergreen Rossi, it is Lorenzo’s brilliance, and a cleverly upgraded Yamaha M1, that is the main block to a third title.
And Marquez rightly senses that Lorenzo will be in a dangerous mood as he bounces back from an under-performing 2014 season in which he never seriously challenged for the title.
"When a top rider has a season like Jorge had last year then 100 percent sure the next year will be stronger, and he will stronger than in the past years," Marquez said.
"Last year Jorge was not in a good shape with his physical condition but I expect he will be really strong again this year from the first race in Qatar
"I would like to repeat my wins of last year, like the 10 victories in a row, but I know that this will be very difficult.
"The Yamaha looks strong and is always competitive in Qatar as Rossi showed last year and now Jorge is clearly back on the pace."
Marquez won in Doha year ago, the first of 10 consecutive race wins that gave him control of the championship by mid-season.