The trial heard that the former Army captain had recorded that Mr Spencer had completed 51 training flying hours against the Civil Aviation Authority's demanded minimum of 45 hours.

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In February 2012, Martin, 17, was shot and killed in Sanford, Florida, by George Zimmerman, a neighborhood watch captain who is awaiting trial on a second-degree murder charge in Martin's death.

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He has coped with injuries and off-the-pitch distractions, like his captain, John Terry, facing a civil trial for allegedly racially abusing an opponent.

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Former England bowler Darren Gough, now Yorkshire captain, explained the change in balls normally favours batsmen and gave his backing to the trial.

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