Complete the following sentence: In September 2012, Rippon announced a coaching change, moving to train with Rafael Arutyunyan in Lake Arrowhead, California. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk> Rippon said, "I kind of turned around to go into a jump and I think when Nan Song and I saw each other we both tried to avoid each other, but we went in the same way and we went head first into each other". Rippon finished 4th at the event and 8th at the 2012 NHK Trophy. <unk> <unk> <unk>
2013 U.S. Championships, he landed three triple Axels and finished 5th. 2013 Four Continents but withdrew after sustaining an ankle injury on February 2, 2013.