|Date of birth||10 April 1979|
|Place of birth||Helsinki, Finland|
|Height||1.80 m (5 ft 11 in)|
|* Senior club appearances and goals counted for the domestic league only.
† Appearances (Goals).
Kopteff was born in Helsinki and began his career with HJK Helsinki and Jazz Pori before moving to Norway with Viking. He spent four years at Stavanger making over 100 Tippeligaen appearances before joining English club Stoke City in December 2005. Kopteff failed to make any impact at Stoke making nine appearances in 2005–06 and was released at the end of the season. He then joined Dutch side FC Utrecht where he spent two years and in 31 August 2008 Kopteff signed a short-term contract to play for Aalesund for the remainder of the 2008 season. The contract was later extended for the 2009 season at the end of which he decided to retire.
Kopteff used to be a regular squad member of the Finland national football team. Due to his lack of first-team football caused by an injury during his second season in Utrecht, he has not played international football since 2007, only limiting him to occasional call-ups. He has been capped 39 times and scored once. He was recalled to the national team in April 2009 against Norway.
|Club||Season||League||FA Cup||League Cup||Total|
- "Kopteff completes Stoke switch". BBC Sport. Retrieved 8 May 2013.