Coulthard attacks Grosjean with banana

Lotus driver Romain Grosjean shows off some of his self-defence moves to David Coulthard ahead of the Japanese Grand Prix.

After starring towards the end of 2013 with a number of podium finishes, Grosjean describes 2014 as a "character-building" season as the team have struggled for both pace and consistency.

Grosjean has reformed his reputation since his first full season in 2012 when he was involved in eight first-lap incidents.

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