Montreal - Felipe Massa says he is unfazed by speculation Jenson Button could replace him at Williams in 2017.
Button, now 36, made his Formula 1 debut as a teenager in 2000 and now rumours suggest he could end his career at the Grove team, replacing Massa from 2017.
But the Briton, who currently drives for McLaren-Honda, is not commenting.
Massa linked with Renault
Button was quoted in Speed Week recently, saying: "I haven't even thought about the next race in Canada (June 12), let alone the 2017."
As for Massa, the 35-year-old - who in turn is being linked with a move to Renault - said the Button rumours are not bothering him.
Massa was quoted by Britain's Express newspaper: "We all know about rumours in F1, and I am zero scared and worried about anything."
Massa added: "It would be nice to stay, but it would be nice to stay in a team where you really see that you can do a good job and have a good future. I am ready for everything."
Vandoorne to replace Button
It is believed, however, that McLaren's decision to replace Button with Belgian hotshot Stoffel Vandoorne has essentially already been taken.
But boss Eric Boullier denies that.
Boullier is quoted by Speed Week: "No, we have not started negotiatings with any driver, it is still far too early for this question, which would be a distraction for the team."