Red Bull young driver Carlos Sainz Jr has confirmed that discussions have been held with a view to placing him in Formula 1 with Caterham, perhaps as early as this season.
Sainz currently leads the Formula Renault 3.5 championship and has been widely tipped to move into Formula 1 next year with Red Bull's junior team, Toro Rosso.
Sainz impressed when he drove for Red Bull and Toro Rosso at the young driver test in July 2013 at Silverstone and could move into a race seat before the end of 2014.
"It is true that there have been talks and that we have spoken to them, but nothing is confirmed," Sainz Jr told Spanish newspaper AS.
"This does not affect me because my goal remains the same: to be at Toro Rosso in the future. If to do that I have to go to Caterham before then I will happily go there.
"It was possible to contest a race this year, but it is Red Bull which decides this. They and Caterham must also have benefits and be convinced by the agreement."
Caterham was taken over by a group of Swiss and Middle Eastern investors prior to the British Grand Prix, with new team principal Christijan Albers hinting that there were no immediate plans to replace either Kamui Kobayashi or Marcus Ericsson.
Red Bull has previously placed one of their young drivers in a rival team - Daniel Ricciardo raced for HRT during the second half of 2011 before joining Toro Rosso for 2012.