Lewis Hamilton claims he suffered multiple problems in the United States Grand Prix that started when his Mercedes Formula 1 team needed to replace the water pump on Sunday morning.
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Takaaki Nakagami has apologised to his home fans after what he feels was a sub-par performance in his home MotoGP race at Motegi.
Honda MotoGP team boss Alberto Puig admits the Japanese manufacturer has not always given newly-crowned champion Marc Marquez the equipment his talent "deserves" in 2018.
Defending Super GT champion Nick Cassidy believes the experience he gained last year could prove crucial in his title battle with ex-Formula 1 star Jenson Button and Naoki Yamamoto.
Kimi Raikkonen's second stint at Ferrari has been characterised by dropping the ball at key moments and costing himself chances to win races. At Austin he passed every test to end a wait of more than 100 races to return to the top of the podium.