Unseeded Mariano Navone of Argentina pulled off the biggest upset of the day, taking down No. 3 seed Felix Felix Auger-Aliassime of Canada 2-6, 6-4, 7-6 (3) in the first round of the BMW Open on Tuesday in Munich, Germany. Navone, ranked No. 70 in the world, battled back and broke Auger-Aliassime in the final set en route to the victory in just over three hours. Navone saved 14 of 19 break points and won 83 per cent of his second-serve points (10 of 12). Czech No. 6 seed Jakub Mensik and

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