Arnaud Kalimuendo scored against his boyhood club as leader Paris Saint-Germain was beaten 2-0 by Rennes in its first home loss in the French league this season on Sunday. The win ended PSG’s 35-match unbeaten run in the league at the Parc des Princes. Marseille later won 2-1 to end Reims’ 19-match unbeaten run and…