The Indo-American duo prevailed over Lokoli-Janvier pair 6-4 6-4 in the quarter-finals.
In tomorrow's semi-final, Paes and Lipsky will be up against all-Indian pair of Purav Raja and Divij Sharan.
Raja and Sharan defeated Australian combination of Alex Bolt Thanasi Kokkinakis 6-2 6-7 (4) 10-6 in a keenly-contested last eight encounter.
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