Ecuador ground out a nerve-jangling 0-0 draw with Mexico to book their place in the quarter-finals of the Copa America on Sunday as Venezuela sealed top spot in Group-B with a 3-0 win over Jamaica. Ecuador, needing only a point against Mexico in Glendale, Arizona to advance on goal difference, withstood a furious late onslaught from ‘El Tri’ to reach the last eight. Mexico launched wave after wave of attacks in the final quarter, with Johan Vasquez forcing a save from Ecuador goalkeeper Alexander Dominguez in the 71st minute, six minutes after Santiago Gimenez struck the post with a shot from close range.