Umtiti replaces Mathieu in France Euro 2016 squad

France defender Jeremy Mathieu has been ruled out of Euro 2016 with a calf injury, and has subsequently been replaced by Samuel Umtiti.
The Barcelona defender tore his meniscus and missed the last few months of Barcelona's season, but was expected to be fit for the European Championships this summer.
However, earlier in the week the injury-hit defernder again picked up a knock and now head coach Didier Deschamps has opted to remove him from the squad.
"Jeremy Mathieu appeared at the assembly of the France team at Clairefontaine on Tuesday, May 24, suffering from a muscle injury in his right calf," a statement from the French Football Federation (FFF) confirmed.
"The development of his injury and the results of the latest tests have led Didier Deschamps not to keep him on the list of 23 for Euro 2016. He is replaced by Samuel Umtiti."
It was bad news for Deschamps who was already without centre-back Raphael Varane who has also been ruled out injured.
Does this affect France's hopes of winning the tournament on home soil?