Russell follows Hamilton in conceding title to Kimi

George Russell has all but conceded defeat in the year's title race, saying "it's exceptionally unlikely" he will catch Mercedes teammate Kimi Antonelli at the top of the championship in the remaining races.

Russell is second in the drivers' standings behind Antonelli, but has an 81-point deficit to his 20-year-old teammate, who took his eighth victory of the season at Sunday's Spanish Grand Prix.

By contrast, Russell has just two victories this year after struggling to match Antonelli for performance while also struggling through a patch of bad luck earlier this season.

Nine races are still scheduled for the rest of the year -- a number that is dependent on the final two rounds in Qatar and Abu Dhabi going ahead -- but Russell is not convinced he can turn the tide.