Formula One team Renault says it has more than four drivers in the frame as it considers its 2012 lineup and waits to see if its star Robert Kubica can come back from career-threatening injuries.
Kubica has missed the entire 2011 season after serious injuries in a preseason rally crash and team chairman Gerard Lopez said Renault will need to make a call on his comeback before taking decisions on the lineup.
"Right now we have a commitment to Robert," Lopez said at the Singapore Grand Prix. "He has done amazing things for the team. We know what he is capable of and any team would take him if he is capable of delivering the same thing.
"Our commitment is to try and see if he can come back and we will wonder about anything else afterwards."
Aside from Kubica, other candidates are current pairing Vitaly Petrov and Bruno Senna plus newly-crowned GP2 champion Romain Grosjean.
"And more," Lopez said. "There's people that are interested just in case."
Lopez was irritated by suggestions that Petrov and Senna's significant personal sponsorships - from Russia and Brazil respectively - would help in their bids to retain their current drives.
"Whenever they get called pay driver I actually feel bad for them," Lopez said. "I find it disrespectful to those guys."