'Painful as hell' - Norris uncertain McLaren can fix issue for Singapore

Lando Norris has admitted he is unsure whether McLaren will be able to fix an issue with his car that is causing a loss of straight-line speed ahead of this weekend's Singapore Grand Prix.

The reigning world champion was in fine form as he claimed three pole positions and two victories in four races spread either side of the summer break, but he has since been off the pace in Azerbaijan and Malaysia.