Complex sentence: The safety was deployed for the third (and final) time when Duval stopped on track after leaving the chicane with a battery issue, prematurely ending his race, allowing the field to close up to di Grassi and d'Ambrosio.
Split into simpler sentences: The safety was deployed for the third (and final) time when Duval stopped on track after leaving the chicane with a battery issue, prematurely ending his race. This allowed the field to close up to di Grassi and d'Ambrosio.