Sebastien Buemi is now the Toro Rosso driver under pressure after two strong races by his teammate Jaime Alguersuari.
Alguersuari was besieged at Valencia by widespread speculation that he will soon lose his race cockpit to the promising Australian Daniel Ricciardo.
But he ran strongly to eighth place in both Canada and Spain, and the AS and Blick newspapers now believe it is Swiss Buemi who is most at risk of losing his seat.
"With these two races he has secured his year and his future," the Faenza based team's boss Franz Tost is quoted as saying, referring to Alguersuari.
Veteran Blick correspondent Roger Benoit wrote: "Must the Swiss (Buemi) now tremble?"
Ferrari test driver and Alguersuari's countryman Marc Gene agrees that the Spaniard has looked stronger of late.
"Previously his big problem was understanding the behaviour of the tyres, but his pace is now impressive. Valencia was a super result when he needed it the most."
Alguersuari, 21, is quoted by El Mundo newspaper: "My goal is to finish races, score points and be ahead of my teammate."