Falla, who has never won a tournament on the ATP Tour, reached the semifinals with a 6-3, 2-6, 6-3 decision over Tipsarevic. Falla had downed No. 8 seed Xavier Malisse in the opening round and will now take on Vasek Pospisil.
Pospisil earned his semifinal berth by downing Matteo Viola 3-6, 6-3, 6-2.
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