<prompt> Pedzisa mutsara unotevera: Akazvarwa muYlitornio, Finland, Koivisto akatamira kuRauma achiri kuyaruka muna 1998 kunotambira Lukko, sezvo kuchamhembe kweFinland kwakanga kusina chikwata cheSM-liiga panguva iyoyo. Mushure megore rimwe raakapedza neLuko junior A timu, Koivisto akatanga muSM-liiga mumwaka wa1999 2000, kunyangwe achiri kupatsanura nguva yake pakati pevakuru uye vechidiki zvikwata. Muna 2000, Koivisto akaonekwa muU18 World Championships uye akahwina menduru yegoridhe neTeam Finland. Akamirirawo Finland mu2001 uye  <response>: 2002 World Junior Championships, vachiuya kumba nesirivha nendarira, zvichiteerana. 