Rain has prevented any play on the first day of the Queen's Club grass court tournament.
With 16 first round matches postponed and showers predicted for the rest of the week, the Wimbledon warmup could already be facing a Monday final for a second straight year. Britain's Andy Murray beat Jo-Wilfried Tsonga of France in the 2011 final.
Murray is the top seed this year, ahead of second-seeded Tsonga.
The top eight seeds, which include seventh-seeded and four-time former champion Andy Roddick, have byes into the second round.
Another four-time champion, Lleyton Hewitt, has been given a wild card and is due to face 2005 runner-up Ivo Karlovic in the first round.
Roddick and Hewitt will team up for doubles for the first time.