Jenson Button says it "amazes" him that Romain Grosjean believes Fernando Alonso is the key to this year's F1 driver market.

Grosjean said that he was having to wait to see what happens with Alonso at Ferrari before he can press ahead with his own decisions, with Alonso having been linked with a return to McLaren. However, after Alonso said he wants to remain at Ferrari, Button said it comes as no surprise to him.

"It doesn't change my cause at all," Button said. "It doesn't change anything because he was always staying at Ferrari."

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When it was then put to Button that Grosjean says Alonso is the key to the market, he replied: "Yeah, which amazes me.

"I know drivers say they don't read the press - we only don't read the press when you say something horrible about us - we pretend we don't read the press! That surprised me, actually. I don't really think he's the key to the driver market, the two McLaren drivers are the key to the driver market, I would say."

And Button was also keen to play down any retirement rumours, saying his comments to the BBC in Spa were just another way of answering a similar question about his future.

"I said if I wasn't racing at the end of the season, so be it. That's what I said. If I'm not racing at the end of the season, so be it. I can't do much about that! But it's not that I'm getting ready because I definitely don't want to retire for many years, but when you're asked the question so many times you've got to say something different else it gets boring."