Kowalewski made his top-flight debut with Wigry Suwałki during the 1996–97 season, but it was not until 2001–02, after a loan spell with second division side Dyskobolia Grodzisk, that he finally established himself with Legia. Midway through the season he moved to FC Shakhtar Donetsk and only conceded once in nine league games as Shakhtar stormed to the Ukrainian title for the first time.
After initially moving to Spartak Moscow on loan in June 2003, Kowalewski signed a five-year contract with Spartak on 7 November 2003.[2] In late 2007, having lost his place to Stipe Pletikosa, he requested to leave the club. In December 2007 Spartak agreed to terminate his contract. He had not played for Spartak in over a year.
On 17 January 2008 it was announced that Kowalewski had started a trial period with Premier League club Reading.[3] On 3 February 2008, Kowalewski signed a three-year deal with Polish club Korona Kielce.[4]
Kowalewski made his Poland debut in February 2002, but made only a handful of appearances before being recalled to the side at the start of Euro 2008 qualifying. He was replaced by Artur Boruc after picking up a second yellow against Portugal on 11 October 2006. Poland won that game 2–1.
Kowalewski replaced Tomasz Kuszczak in Poland's Euro 2008 squad following the Manchester United goalkeeper's back injury.[7] He had to re-use the UEFA ID card of his team-mate Mariusz Lewandowski to enter the stadium in Klagenfurt for the match against Germany as he did not obtain an accreditation pass due to an oversight by the Polish delegation.[8]
In September 2009, he was recalled to the squad for the World Cup qualifiers against the Czech Republic and Slovakia by coach Stefan Majewski. He was the starter against the Czechs as Poland slipped to a 2–0 defeat on 10 October 2009 which killed off any lingering hopes of qualifying for the tournament finals.
International statistics
Appearances, conceded goals and clean sheets by national team
