Motivation will not be in short supply when the 2013 ATP World Tour season ends with a bang at London's O2 Arena on Monday.
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Charleston Open: Jessica Pegula survives scare to beat Amanda Anisimova in first round
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Miami Open: Grigor Dimitrov stuns Carlos Alcaraz to reach semi-finals, ending Spaniard's Sunshine Double goal
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Miami Open: Daniil Medvedev, Carlos Alcaraz, Jannik Sinner book quarter-final places as Victoria Azarenka makes semis
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Miami Open: Carlos Alcaraz holds off late Gael Monfils fightback to reach Miami Open last 16
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Indian Wells Open: Rafael Nadal faces Milos Raonic clash, while Andy Murray could tackle Andrey Rublev
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Miami Open: Victoria Azarenka too strong for Britain's Katie Boulter in last-16 tie