An Odesa native, Serghei Covalciuc previously had Moldovan and Transnistrian (de facto nation) citizenships, but, in 2007, he renounced them to receive Romanian citizenship and be able to play more often for Spartak. On 23 February 2010, Tom Tomsk signed Covalciuc on a free transfer and on a two-year deal.Сергей Ковальчук подписал двухлетний контракт с "Томью"
