Sergio Perez says he would reject a mid-season switch to Ferrari, insisting that he will finish 2012 with his Sauber team.
Perez is a member of Ferrari's young driver programme and the Sauber driver has been linked with Felipe Massa's seat following the Brazilian's poor start to the campaign.
The Mexican, who made his grand prix debut with the Swiss squad last year, has enjoyed an impressive start to the season, fighting for victory with Fernando Alonso at the Malaysian Grand Prix.
Perez has made it clear that he would turn down an offer to move to Ferrari mid-season, but he insisted talk about his switch is just speculation.