Center back who joined Liverpool in 2008 after four years with Zenit Saint Petersburg; became a member of the Slovakia national team in 2004. In 2014 he began playing for Fenerbahce.
Beginning his career in his native Slovakia with FK AS Trencin, he moved to Zenit Saint Petersburg in Russian in 2004.
He was named Slovak Footballer of the Year for the fourth time in 2012.
He married Barbara Lovasova in 2012. The couple has one son, Matteo.
He became teammates with Steven Gerrard on Liverpool in 2008.