Rather than seeing how many creatures a player can kill or how much gold they can accumulate, Flack is more interested in getting inside the player's head.

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Ramires restored Chelsea's lead shortly before half-time as he finished off a sweeping move and the same player had the chance to kill off Spurs' Champions League hopes in the second half only to slip at the crucial moment after being teed up by Juan Mata.

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Hockey player: What doesn't kill you...

CNN: 'On Looking': The world you're not seeing