Jenson Button will stay with the McLaren-Honda team for the 2016 Formula 1 World Championship season, it has been officially confirmed.

The 2009 F1 World Champion's future has been under careful scrutiny in recent weeks after hinting he may choose to bring his 16 year tenure in F1 to a conclusion, despite McLaren declaring its intentions to retain him.

However, though Button carefully dodged speculation throughout the Japanese Grand Prix, McLaren CEO Ron Dennis later revealed the confirmation of the deal was forthcoming, saying its 'terminate after one year' option was not exercised.

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Delighted to have retained Button in what will be an unchanged driver line-up alongside Fernando Alonso, Dennis says he is convinced the Englishman will be as 'committed and as focused as ever'.

"Jenson and I have been discussing his plans in private for the past few weeks, and the fact that our talks have led to today's announcement is very pleasing to both of us and will delight and motivate all at McLaren-Honda," he said.

"As I have made clear whenever I have been asked about the subject, Jenson';s current contract is of two years'; duration [2015 and 2016]. There is a 'terminate after year one' option that McLaren could have triggered if we had wished to do so, but, once it became clear from my many conversations with Jenson that he remained as enthusiastic and as committed and as focused as ever, that option immediately became an irrelevance.

"That being the case, Jenson will race for McLaren-Honda next year, under the terms and conditions as set out in the two-year contract that both parties entered into a year ago.

"As I say, I am extremely pleased. Jenson is the most experienced driver currently racing in Formula 1, and next season he is due to become only the third driver [after Rubens Barrichello and Michael Schumacher] in Formula 1 history to pass the milestone of 300 Grands Prix. But, although that wealth of experience makes him a massively valuable asset to our team, hugely expert in all aspects of the 21st-century Formula 1 driver's craft, he is also supremely fit and as super-fast as ever."

Button's confirmation comes after a difficult season that has seen him crack the top ten on two occasions so far this year as McLaren and Honda struggle to bring the MP4-30 package up to competitiveness.