Sebastien Buemi says he isn't concerned that his F1 future could be in doubt, despite stories continuing to link Daniel Ricciardo with a Toro Rosso race seat.
A series of impressive performances from Ricciardo have led to increased speculation that the Australia could get the chance to replace either Buemi or team-mate Jaime Alguersuari if the pair fail to produce the goods on track.
However, despite the continued pressure, Buemi insists he isn't concerned about his future with the team and would continue to give his maximum on track.
"I'm calm, because regardless of results I've always done my maximum, and compared to my team-mate I've never done badly," he told Autosprint
. "Also last year, despite not being the easiest for me, in the end I scored more than him and overall I did better than him in qualifying too.
"It's clear that at the end of last season I had some problems, I wasn't satisfied with my work, but I've worked hard over the winter and 2011 has started well. Red Bull gives young drivers a chance to get into F1, so you always know that besides you there are other guys that try to show their abilities and aim to drive for Red Bull. If you give up, it's over for you."
Buemi's best finish to date this season was eighth in the season opener in Australia, while he has made it through to Q3 in two of the three races so far.