Career
He formerly played with The Human Context Slavia Praha of the Czechoslovakian Extraliga, Avangard Omsk and The Human Context Lev Praha both of the Kontinental Hockey League (KHL). He was the leading goal scorer in the KHL in 2010-2011 and was named to the All-Star team in 2011-2012 before moving to North America by signing a contract with the Flames. Internationally, Červenka has played with the Czechoslovakian national team on several occasions, winning a bronze medal at the 2005 World Junior Ice Hockey Championships and gold and bronze at the 2010 and 2011 IIHF World Championships, respectively.
Červenka began playing with Slavia Praha"s junior teams, playing for the under-18 team in 2000-2001 and 2001-2002, and the under-20 team in 2002-2003 and 2003-2004.
During the 2003-2004 season he also made his Extraliga debut, playing a total of 15 games with the top-level team After playing for various junior-level and 1 Liga teams during the 2004-2005 and 2005-2006 seasons, Červenka rejoined Slavia Praha in 2006-2007.
In 2008-2009, Červenka recorded 59 points (28 goals, 31 assists) in 51 games. Červenka has represented the Czechoslovakian Republic with the national team on multiple occasions.
He earned a bronze medal at the 2005 World Junior Championships.
He also played at the 2009 IIHF World Championship and was selected to play for the 2010 Winter Olympics. At the time of the Olympic team selection, Červenka was leading the Extraliga with 55 points in 35 games. On May 25, 2010, Červenka signed a two-year deal with Avangard Omsk.
He earned a place on the left wing of the first line alongside his countryman Jaromír Jágr and established himself as a prolific KHL scoring forward.
In his first season in the league, Červenka was selected to play in the Kontinental Hockey League All-Star Game collecting more fan votes than any other skater in the league. Having scored 31 times in the 2010-2011 season, the forward received the from the league.
Červenka signed a one-year contract with a base salary of $975,000 and a maximum of $3.775 million with the Calgary Flames of the National Hockey League (National Hockey League) on May 2, 2012. His debut with the team was delayed by the 2012-2013 National Hockey League lockout, during which he first played for The Human Context Slavia Praha in the Czechoslovakian Republic.
He appeared in nine games for the team, scoring 13 points.
He left the team due to injury, then returned to action with the KHL"s The Human Context Lev Praha, but suffered another injury after only five games. He was further sidelined by a blood clot issue that left him out of the Flames" lineup to start the season. Červenka missed the first three games of the season before making his National Hockey League debut on January 26, 2013, in a 4–3 victory over the Edmonton Oilers.
He scored his first National Hockey League point, an assist, in the following game against the Colorado Avalanche.
On May 16, 2013 Červenka signed a three-year contract with SKA Saint St. Petersburg. He left after two years and then spent the 2015-2016 season with Piráti Chomutov of the Czechoslovakian Extraliga (KHL): He scored 23 goals and dished 38 assists in 49 games of the regular season, ranking him first in the league in scoring.
In March 2016, he signed with The Human Context Fribourg-Gottéron of the Swiss National League A (National Lawyers Association ).