Mercedes driver Lewis Hamilton has complained about the balance of his car ahead of his home Grand Prix at Silverstone on Sunday.
The British driver could only manage fifth-fastest in second practice yesterday, with teammate Nico Rosberg topping the timesheets.
Speaking afterwards, Hamilton said: "I'm not happy with the balance of the car. I'm not enjoying it at the moment.
"I can't remember the last time I've felt so uncomfortable. I don't really know what it is."
Third practice takes place at 10am this morning before qualifying at 1pm. You can follow the latter live here on Sports Mole from 12.30pm.