VOLVO BITS

No. 3 seed Brad Gilbert, who lost Saturday to No. 8 seed PaulAnnacone, was playing in only his second tournament of the year afterbeing sidelined by an ankle injury. He played in the WCT Finalslast week in Dallas and defeated Wimbledon champion Pat Cash beforelosing in the semifinals to Boris Becker. Annacone's best showing in Volvo/Chicago before this year was aquarterfinal appearance in 1986, …