Mercedes still searching for speed after difficult Friday

Lewis Hamilton says he is still chasing the balance of his Mercedes W10 after a tricky Friday practice.

The championship leader finished first and second in FP1 and FP2 respectively, with teammate Valtteri Bottas topping the times in the final session on Friday.

Speaking afterwards, Hamilton admitted he was still searching for the right balance on his car, adding that a power unit issue in second practice cost him important track time.

"It’s been very hot today, but we got through most of the programme," he said.