Hidden front wing damage played a significant part in dashing Lance Stroll's Turkish Grand Prix hopes after he led from pole position, the Canadian's Racing Point Formula One team said on Monday.
Stroll, whose Mexican team mate Sergio Perez finished second, was leading the race until he pitted for fresh intermediate tyres on lap 36 at Istanbul Park.
The 22-year-old then slid down the order, ending up ninth, after reporting heavy tyre graining.
"It was discovered during the team's routine after race car set down that damage to the underside of Lance's front wing was a significant contributor to the severe graining issues," Racing Point said in a statement.