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 30 free stories this month. Why stop there? Click here to find out how to continue reading.
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