Toro Rosso boss Franz Tost has named Antonio Felix da Costa as the likely candidate should the team have a vacancy for 2014.
With Daniel Ricciardo in the running to replace Red Bull’s Le Mans-bound Mark Webber, the energy drink company’s junior team Toro Rosso has said it wants to keep Frenchman Jean-Eric Vergne next year.
As for Australian Ricciardo’s likely successor, Tost told Brazil’s Totalrace: "Antonio Felix da Costa is one of the candidates, but let’s wait for Red Bull’s decision.
"If they take Daniel, then we will assess who will be the choice for our second cockpit," the Austrian added.
Red Bull-backed Portuguese da Costa, 21, is currently running fifth in this season’s Formula Renault 3.5 series.