In other main draw play, senior Alex Brown and freshman Tom Lloyd fell to Washington's Andy Posavac and Nick Quatrochi, 8-3.
In the invitational doubles draw, Oregon's Jason Menke and Cedric Vanhaver defeated junior Brian Jackson and sophomore Jari Niskala, 8-3, while the duo of sophomore Caleb Marquardt and Aybar fell to Jeff Eicher and Dillon Ruby of Washington, 8-5.
Results Main Draw Doubles-First Round Aybar/LaCoste (UA) def. (1)Abrams/Kim (Stanford) 8-4 Posavac/Quatrochi (Washington) def. Brown/Lloyd (UA) 8-3 Results Invitational Doubles-First Round Menke/Vanhaver (Oregon) def. Jackson/Niskala (UA) 8-3 Eicher/Ruby (Washington) def. Aybar/Marquardt (UA) 8-5 Results Main Draw Doubles-Second Round Collins/Park (USC) def. Aybar/LaCoste (UA) 9-8 (5)