Martin Palermo scored in the 90th minute to salvage a 1-1 tie for Argentine powerhouse Boca Juniors against Paraguayan champion Libertad in the first leg of their Libertadores Cup quarterfinal series on Thursday in Buenos Aires.

Boca star Roman Riquelme and keeper Mauricio Caranta were the goats for Boca. Riquelme missed a penalty kick for Boca, which fell behind when Caranta tried to tip Osvaldo Martinez's free kick out of play but missed the ball, which flew into the Boca goal.

LIBERTADORES CUP
Quarterfinals, First Leg
May 15
Cucuta (Col.) 2 (Torres 75, Perez 90) Nacional (Uru.) 0.
May 16
Defensor Sporting (Uru.) 2 (Sorondo 1, Martinez 43) Gremio (Brazil) 0.
Club America (Mex.) 0 Santos (Brazil) 0.
May 17
Boca Juniors (Arg.) 1 (Palermo 90) Libertad (Para.) 1 (Martinez 82).