Pari gbolohun ti o tẹle: Slepyshev ni a yan ni akọkọ lapapọ ni 2011 KHL Junior Draft nipasẹ Metallurg Novokuznetsk. Ni arin akoko ọdun 2012-13, keji rẹ ni Kontinental Hockey League, o gbe lati Metallurg lọ si Salavat Yulaev Ufa. Lẹ́yìn tí àwọn Oilers yàn án ní ìpele kẹta (88th overall) ti
2013 NHL Entry Draft, Slepyshev wà ni Russia lati tẹsiwaju idagbasoke rẹ pẹlu Salavat.