Completed the following sentence: In August 2007, Dobrin relocated to Saint Petersburg to train under Alexei Mishin. 2007 NHK Trophy<unk> ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ ️<unk>️<unk>️<unk>️<unk>️ <unk> <unk> <unk>
2010 Russian Championships, Dobrin retired from competition. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️