Career
Born in Alytus, Martinkėnas was the goalkeeper for the Lithuanian national team in the years after independence from the Union of the Soviet Socialist Republics, appearing in most of the qualifying games for the 1994 World Cup. Later, he became goalkeeping coach to the Estonian national side. Martinkėnas died at the age of 39 in Nova Gorica in Slovenia, drowning in a strong current after having gone for a swim in a mountain river.
He was the goalkeeping coach of Flora Tallinn at the time, and was in Slovenia preparing for their Champions League qualifier against NK Gorica.
1989-1990 with FK Žalgiris Vilnius: 4 games. European Cup 1990-1991 with Football Club Dynamo Kyiv: 2 games.