NEW : Lotus-Renault say Robert Kubica `` much better '' after his rally crash . Kubica required seven-hour emergency operation to his right hand and arm . The Russian driver was taken by helicopter from the accident site in a serious condition, but is expected to be released on Monday. His team defend the Pole 's decision to race in a motor rally .
NEW : Lotus-Renault say Robert Kubica `` much better '' after his rally crash . Kubica required seven-hour emergency operation to his right hand and arm . Surgeon claims it will be several days before it is known if surgery fully successful . His team defend the Pole 's decision to race in a motor rally .