Serena Williams was fined $2,000 by the U.S. Open on Monday for berating the chair umpire during the final. Tournament referee Brian Earley issued his ruling a day after Williams was cited by chair umpire Eva Asderaki for a code violation for verbal abuse during a 6-2, 6-3 loss to Sam Stosur in the women's singles championship match at Flushing Meadows.