The 69-strong field for the WGC-Cadillac Championship was cut to 66 before a ball was struck in Miami today.
American Bubba Watson, a semi-finalist at the WGC-Accenture Match Play two weeks ago, pulled out because of illness, while compatriot Ben Crane and South African Tim Clark failed to recover from injuries.
Clark has not played since the Sony Open in Hawaii in January because of tendinitis in his right elbow and Crane suffered a pulled rib muscle at the Match Play.
Watson, the world number 15, tweeted: "Hit one ball (on the practice range) and knew I could not play. Club felt so heavy. Time to rest and be ready for next week."
The tournament was only half an hour old when it had to be suspended because of an approaching storm.
Ian Poulter had time only to drive into the left rough down the long first, while Welshman Rhys Davies made five there and had a two-footer on the next to remain level par.
Danes Thomas Bjorn and Anders Hansen and Indian SSP Chowrasia led at one under.