Ross Brawn: Mercedes practice "slightly messy"

Mercedes practice was
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Ross Brawn hints at some concern over tyres as Mercedes endure a "slighty messy" practice session on Friday afternoon.

Mercedes team boss Ross Brawn was not fully satisfied with the performance of his two cars during practice at the Japanese Grand Prix.

Both Nico Rosberg and Lewis Hamilton suffered flat spots on their tyres during the afternoon, which Brawn admitted led to the team having to adapt.

He told reporters: "We had a slightly messy session this afternoon which didn't quite run as smoothly as we might have hoped.

"Our pace looked competitive this morning, a little less so this afternoon, but as always on Friday the varied fuel loads up and down the pit lane complicate things somewhat."

Hamilton also voiced concerns about the amount of tyre wear his Mercedes may produce across the race weekend.

Sebastian Vettel celebrates after securing pole position at the end of qualifying for the Singapore Formula One Grand Prix on September 21, 2013
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