Rosberg says practice was very challenging because of tyre management
|By Edd Straw||Friday, May 11th 2012, 14:03 GMT|
Nico Rosberg has admitted that tyre degradation is worse today than it was during pre-season testing after what he and team-mate Michael Schumacher both described as a "challenging" day for Mercedes.
You have viewed over 15 free stories this month. Why stop there? Click here to find out how to continue reading.