[LIBERTADORES CUP] Mauro Boselli scored twice to give Argentina's Estudiantes a 2-1 win at Uruguay's Nacional and a 3-1 aggregate victory, booking a place in the final against one of the two Brazilian clubs, Gremio or Cruzeiro, which settle their semifinal series on Thursday.

Estudiantes, which won the competition three straight times in 1968-70, played without its injured captain Juan Sebastian Veron. But it extended its aggregate lead to 2-0 when Gaston Fernandez robbed defender Sebastian Coates and fed Boselli to strike it past goalkeeper Rodrigo Munoz in the 53rd minute.

Nacional equalized in the 76th minute when Alexander Medina volleyed Nicolas Lodeiro's free kick past goalkeeper Mariano Andujar from close range, beating the keeper for the first time in his last nine Libertadores games.

Nacional, having given up an away goal, needed two more, and while throwing everything into the attack conceded Boselli's second goal in stoppage time.

Thursday's all-Brazilian semifinal, to which Cruzeiro takes a 3-1 lead over Gremio, airs on Fox Sports en Espanol, 8:30 pm ET.