Heinz-Harald Frentzen, who collapsed after last Sunday's race due to intestinal virus, was re-admitted to hospital today, after he was found well enough yesterday to return home. Reportedly.

Frentzen said yesterday he was feeling much better, but apparently today his condition deteriorated and he returned to the Vienna hospital for further hospitalization. He is, however, expected to leave home tomorrow. Frentzen will not test for Williams in the mean time, and Montoya and Wilson will replace him. .