PARIS — Paris Saint-Germain had no problem beating Le Havre 2-0 to extend its lead at the top of the French league standings despite playing 80 minutes with 10 men after goalkeeper Gianluigi Donnarumma was sent off for a reckless tackle. Goals from Kylian Mbappe and Vitinha on Sunday ensured a seventh consecutive league win for Luis Enrique’s team. PSG has a four-point cushion at the top after second-place Nice was handed its first loss this season on Saturday, a 1-0 defeat at Nantes. Marseille later snapped a four-game winless run in the league with a 2-0 win against Rennes. Marseille moved up to ninth place.