Fernando Alonso claims Formula One should follow the lead of other sports by keeping radio messages private 

• e-mail

Fernando Alonso says Formula One radio messages should stay between driver and team after his controversial outburst at McLaren was broadcast live to at the Japanese Grand Prix.

The Spaniard was heard screaming 'GP2 engine' during a disappointing race in which he finished 11th and was criticised by Ron Dennis afterwards.

But Alonso believes it is a unique situation drivers are dealing with in the sport and his team-mate Jenson Button will be experiencing the same level of frustration.

Fernando Alonso says Formula One radio messages should stay between driver and team after his outburst

Alonso has said that both he and Jenson Button (right) are often left frustrated but it should be kept private

'We've been all season very positive about the team and about the car,' Alonso said on Thursday ahead of the Russian Grand Prix.

'We've faced some difficult times, some tough times, and when you talk on the radio it should remain private, because you are talking with the team, not in public.

'As I say, we've been very, very positive all the time; sometimes it's normal and understandable talking to the team, the level of frustration that I have racing, and Jenson has as well.

'When you cannot hold anyone behind and you are losing positions, it's normal [to be frustrated], but it's a unique sport that we have a microphone and it goes live on television.

'Imagine in basketball or football, or something like that, what we would find...'

The drivers all looked engaged during a press conference as the championship reaches an exciting climax

While Button has signed on for another year with the struggling Honda-powered unit, Alonso – who penned a three-year contract in 2015 – threw his future into doubt following the race in Suzuka after replying 'I don't know' when asked if he would be on the grid next year.

But Alonso has now moved to quell McLaren supporters' doubts by insisting he will '100 per cent' be with McLaren in 2016, and 2017.