Career
Born in Brno, Blažek started his career in, where he got to play his first league games. After two years during which he was mainly used as a substitute, he moved to Dynamo České Budějovice to become the number one goalkeeper there. He left after only one year though, returning to Prague, this time to Football Club Bohemians.
They were relegated that year and Blažek, who didn"t want to spend a year in Druhá liga, was loaned for one year to his first club Slavia, where again he was but a substitute.
Since Bohemians regained promotion the same year, he returned there and stayed for three and a half years. However, if his club wasn"t performing very well, it wasn"t the case for Blažek, who drew the attention of giants, transferring there in early 2000 and winning back-to-back titles in 2000 and 2001.
After that, he played almost every single game for, be it league, cup or Champions League games. In 2007, he decided to try a first experience abroad and was sold to German club 1.
Football Club Nürnberg, who purchased him as a replacement for Raphael Schäfer who had left for VfB Stuttgart over the summer.
Blažek was the number one there but fell sick in April and could not play the end of a season that saw Nürnberg being relegated. In June, it was announced that Blažek was returning to for the following season. However, on 16 December 2011, announced their decision to terminate Blažek"s contract early, releasing him as a free agent.
This was confirmed by the player"s agent Pavel Paska.
On 22 February 2014 in a league match for Jihlava against Znojmo, Blažek kept his 139th clean sheet, setting a new goalkeeper record for the Czechoslovakian league. He was however never able to be but the number two behind Petr Čech.
He was part of the Czechoslovakian roster at both Euro 2000 and Euro 2004, but only played in one match during the two tournaments combined. He was also on the Czechoslovakian roster for the 2006 World Cup.