sentences:  On 29 November - 1 October 2016, Kavaguti/Smirnov returned to international competition in an ISU Challenger Series at the 2016 Ondrej Nepela Trophy where they won the silver medal behind teammates Evgenia Tarasova and Vladimir Morozov.On 22 September 2017, their coach Tamara Moskvina revealed that Kavaguti/Smirnov have retired from competition.Smirnov was born in Tver, Russia.