Career
A defenseman, he was drafted in the third round, 71st overall, by the Buffalo Sabres in the 2004 National Hockey League Entry Draft. Minor
After playing one season in the Slovak Extraliga for Dukla Trenčín, Sekera came to North America. Professional
On July 14, 2006, Sekera signed a three-year contract with the Buffalo Sabres.
He made his professional debut with the Sabres" American Hockey League (AHL) affiliate, the Rochester Americans, in the 2006-2007 season.
He also appeared in two National Hockey League games with the Sabres early in the season. Sekera recorded his first National Hockey League goal on November 28, 2007, against Saint Louis Blues" goaltender Manny Legace.
In 2009, Sekera was selected to represent Slovakia internationally at the 2010 Winter Olympics in Vancouver, British Columbia. Slovakia ultimately finished fourth in the tournament.
On July 19, 2011, Sekera signed a four-year contract extension with the Sabres worth $11 million and in doing so, avoided salary arbitration.
During the 2012-2013 National Hockey League lockout, which cancelled the majority of the first half of the 2012-2013 season, Sekera played in his native Slovakia with Slovan Bratislava of the Kontinental Hockey League (KHL). He returned, however, to the Sabres following the return of National Hockey League play in January 2013. On June 30, 2013, during the 2013 National Hockey League Entry Draft, Sekera was traded by the Sabres to the Carolina Hurricanes in exchange for the team"s second-round draft pick (#35 overall) and defenseman Jamie McBain.
In 2014, Sekera was again selected to represent Slovakia, participating in the 2014 Winter Olympics in Sochi, Russia.
Slovakia finished the tournament in a disappointing 11th place. In the midst of the 2014-2015 season, in the last year of contract before approaching unrestricted free agency, and with the Hurricanes out of playoff contention, on February 25, 2015, Sekera was traded to the Los Angeles Kings in exchange for a conditional first-round pick and defensive prospect Roland McKeown.
On July 1, 2015, Sekera signed as a free agent to a six-year, $33 million contract with the Edmonton Oilers.