However , a couple of minutes before the end of the pitstop window , a Full Course Yellow was called by the race director , to remove debris on the track which played into the hands of the drivers who had started on slicks .
Were yet to pit .
However , a couple of minutes before the end of the pitstop window , a Full Course Yellow was called by the race director , to remove debris on the track which played into the hands of the drivers who had started on slicks and were yet to pit .