Two-time title winner Fernando Alonso leaves Formula One; says 'new challenges are around the corner' amid IndyCar rumours

Two-time champion Fernando Alonso will leave Formula One at the end of the season and potentially move to IndyCar in the United States.[caption id="attachment_4967131" align="alignleft" width="380"] File image of Fernando Alonso. Reuters[/caption]McLaren Racing confirmed on Tuesday that the Spaniard will not return to F1 next year for his 18th season, and Alonso said F1's leadership group tried to convince him to stay with the series."I made this decision some months ago and it was a firm one," Alonso said in a statement, adding, "nevertheless, I would like to sincerely thank Chase Carey and Liberty Media for the efforts made to change my mind and everyone who has contacted me during this time."There's been lengthy speculation that McLaren will enter IndyCar with Alonso as one of its drivers. Alonso ran the Indianapolis 500 a year ago and was in position to win the race until his engine failed.He also ran the Rolex 24 at Daytona as a warm-up for the 24 Hours of Le Mans, in which Alonso was part of the winning team. Alonso has been pursuing the top motorsports events and has said he would like to return to Indianapolis and add a win in "The Greatest Spectacle in Racing" to his resume."Let's see what the future brings," Alonso said in a statement, "new exciting challenges are around the corner. I'm having one of the happiest times ever in my life but I need to go on exploring new adventures."Alonso has 32 career F1 wins, 22 poles and 97 podiums. He won two world titles and was runner-up three times. He's in his fifth season driving for McLaren and had hinted on social media he had an announcement coming Tuesday.Zak Brown, CEO of McLaren, called Alonso "the pre-eminent driver of his generation.""There is a time for everyone to make a change and Fernando has decided the end of this season to be his," Brown said, adding, "we respect his decision, even if we believe he is in the finest form of his career. He has continued to perform at the highest level throughout, as we know he will do in the remaining nine races of this year's championship."Brown was a key player in Alonso's entry at Indianapolis, Daytona and Le Mans. He's supported Alonso's quest to enter other formulas and signed off on the driver skipping the Monaco Grand Prix in 2017 to instead race at Indianapolis.Brown is also behind McLaren's potential entry into IndyCar and the team is believed to have courted four-time IndyCar Series champion Scott Dixon to be Alonso's teammate.