Lipsky, Lahiri and Prom Meesawat will headline the inaugural Dubai Open next week alongside 30 other Tour champions and four former Order of Merit winners.
Federer subdued Berdych 3-6, 6-4, 6-3 in the final to win the Dubai Championship on Saturday, the Swiss maestro's 78th singles title.
The'Indo-Pak Express' duo beat their top seeded opponents Nestor of Canada and Zimonjic (Serbia) 6-4 6-3 in the summit clash at the Dubai Duty Free Tennis Championships.
Third seed Tomas Berdych, who finished runner-up to Djokovic in 2013, faces seventh seed Philipp Kohlschreiber in the other semi-final.
Venus Williams won her 45th career WTA title at the Dubai Championships in an impressive 6-3, 6-0 victory over Alize Cornet of France.
Alize Cornet scored her first career victory over a No. 1 player when she upset Serena Williams 6-4, 6-4 in the Dubai Championships semi-finals.
Venus dominated eighth-seeded Caroline Wozniacki 6-3, 6-2 to reach the final of the Dubai Championships on Friday.
Venus reached her fourth career Dubai Duty Free Tennis Championships semi-final with a 6-3, 7-5 win over qualifier Flavia Pennetta of Italy.
Venus Williams, defeated Serbia's Ana Ivanovic 6-2, 6-1 and her younger sister Serena Williams, kicked out Elaterina Makarova 7-6, 6-0 in Dubai Open.
Venus Williams pummeled Ana Ivanovic 6-2, 6-1 in a second-round match between former world No. 1s at the Dubai Championships.
Radwanska, the 2012 Dubai champion, also was ousted in the second round at the Qatar Open in Doha last week.
Seventh-seeded Halep retired with a right Achilles injury and fatigue while trailing Alize Cornet of France 6-1, 1-1, in her opening match.
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