The former world number one, who retired from the sport in 2006 and coached Novak Djokovic from 2017-18, will begin his role at the 2025 Laver Cup, which will take place in San Francisco.
Agassi replaces compatriot John McEnroe, who has captained Team World since the inaugural edition of the three-day team tournament, which pits six top men's players from Europe against six of their counterparts from the rest of the world.
This year's Laver Cup will be held in Berlin from September 20-22.
--ChannelAfrica--