Jenson Button will not take part in qualifying for the Mexican Grand Prix after further reliability issues for McLaren-Honda.
Having missed out on running in FP1, a scheduled power unit change saw Button fail to make the start of FP2 on Friday. Saturday was just as bad for the 2009 world champion, with his FP3 session ending after just four laps with an issue which requires a power unit change, in turn ruling him out of qualifying.
"All weekend it's been tough, we've had a lot of issues," Button said. "I've done hardly any running really. It's tough, we had a systems failure with this power unit so it means that we have to revert to the other power unit for the race, so I miss qualifying."
And asked how the race will be for him on Sunday, Button replied: "Tough.
"It's going to be a tough day because I haven't done any high-fuel running or anything, so we'll see."
McLaren confirmed the news on Twitter, describing the issue as a signal problem which stopped him earlier on Saturday.
"The underlying signal problems on JB's engine have not been resolved," the team tweeted. "Therefore, he won't take part in quali. Our focus is now on the race."
LIVE: Mexican Grand Prix - Qualifying
Eric Silbermann's Mexican grumpy preview
Technical analysis: United States
Click here for the F1 drivers' girlfriends gallery
Keep up to date with all the F1 news via Facebook and Twitter
Sebastian Montoya, the 19-year-old son of former Formula 1 star Juan Pablo Montoya, is set…
When former Ferrari team principal Mattia Binotto took on the role of Chief Operating Officer…
Charles Leclerc concluded the 2024 F1 season with a sense of satisfaction, the Ferrari driver…
Former Formula 1 driver David Coulthard has voiced his dismay at FIA president Mohammed Ben…
Super Aguri's application to join Formula 1 became a reality on this day in 2005,…
Ferrari roared back into contention in 2024 to deliver their strongest season in years, thanks…