Max Verstappen risks grid penalty after summons to stewards

Formula One championship leader Max Verstappen could face a grid penalty after being summoned by stewards for allegedly failing to slow when warning flags were waved during his final qualifying lap at the Qatar Grand Prix on Saturday.

The Dutch 24-year-old qualified second with title rival Lewis Hamilton's Mercedes on pole position.

Stewards said in a statement that Verstappen and a team representative must report to them at 1300 local time on Sunday. The floodlit night race is due to start at 1700.

The yellow warning flags -- under which drivers must reduce speed significantly and be prepared to stop -- were double waved after AlphaTauri's Pierre Gasly lost his front wing and suffered a puncture, stopping on track.

Verstappen completed his final lap after Gasly's incident and improved his qualifying time.

He leads seven-time world champion Hamilton by 14 points with three races remaining.