The German rugby federation repeatedly tried to have Mohr released for the team but his club refused despite being obliged to.
Mohr and his club, La Rochelle, finished in the top five of the French second division in each season from 2007 through 2010. After failing to earn promotion in the first three seasons, losing in the promotion semi-finals in 2008 and 2009 and in the final in 2007, the club finally broke through with a win over Lyon in the 2010 promotion final. After ten years with La Rochelle he announced his departure from the club in 2012. Being thought after by German club DSV 78 Hannover he decided to stay in France and join third division side Stade Niortais instead. He played his last competitive rugby match on 6 April 2013, when he fielded for Germany against Sweden in a 73–17 victory. Mohr retired after this match from international and club rugby and will work for a drink vending machine manufacturer and also act as a talent scout for La Rochelle. He however returned to the German team one more time in May 2014 in the decisive world cup qualifier against Russia which Germany lost.