Novak Djokovic suffers in Cincinnati heat as Thiago Agustín Tirante inflicts shock defeat

Argentinian powers to 2-6, 6-4, 6-4 victory Heat and humidity take toll on Djokovic Britain’s Fery holds off Duckworth 6-4, 2-6, 7-6 The scoreboard did not yet indicate that anything was awry, but even as Novak Djokovic led by a set in his opening match at the Cincinnati Open, he was already struggling badly. From the second set onwards, he spent much of his time between points squatting and…