ATP Challenger Tour on Twitter: "The @mtyopen is once again linking the past and future champions of our sport. More: https://t.co/mQuBD7aW5l https://t.co/hYKWnyX0cL" / Twitter
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Oleg S. Twitterissä: "Updated ATP Challenger Tour calendar now has 12 tournaments in November/early December, including 3 Challengers in South America and 2 in USA. https://t.co/dXu0eP7kyS" / Twitter
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