BBC Sport - Lewis Hamilton: Mercedes team-mate Rosberg is my main rival
Rosberg biggest rival - Hamilton
- From the section Formula 1
Lewis Hamilton believes Mercedes team-mate Nico Rosberg will be his "biggest rival" this season.
The 29-year-old says he could "never have dreamed" his switch from McLaren could have gone so well and feels he has "matured a little" since joining the silver arrows.
Available to UK users only.