Mexico snatched a pulsating 3-3 draw with Chile while Bolivia downed Ecuador in a five-goal thriller as the Copa America laid on a feast of attacking football.
A dramatic day of action in Group A saw Bolivia secure their first win in the tournament in 18 years with a 3-2 victory over Ecuador in Valparaiso before an epic battle between Chile and Mexico in Santiago.
Chile, 2-0 winners over Ecuador in their opening game, looked to have booked their place in the quarter-finals after two goals from Juventus star Arturo Vidal helped them into a 3-2 lead.
But a 66th-minute equaliser from Vicente Vuoso, his second of the match, earned a share of the points for Mexico, who are one of two teams from outside South America invited to take part in this year's tournament.
Vuoso had given Mexico the lead after only 21 minutes, tucking away Juan Carlos Medina's cross after a sweeping counter-attack, only for Vidal to level a minute later with a thunderous header.
Mexico grabbed the lead again on 29 minutes when Atletico Madrid striker Raul Jimenez headed home Adrian Aldrete's corner to make it 2-1.
Chile again hit back rapidly however with Eduardo Vargas equalising shortly before the break.
Vidal then struck a 55th-minute penalty to put Chile ahead for the first time in the match, only for Vuoso to frustrate the home side with his second.
Chile had what looked like a legitimate Alexis Sanchez goal ruled out for offside with 10 minutes to go as Mexico survived a late onslaught to claim a share of the points.
Chile now top Group A on goal difference as they prepare to meet Bolivia in their final first round match on Friday.
- Vidal: 'We must improve' -
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Man-of-the-match Vidal said 'La Roja' would need to improve to be sure of winning the group.
"There are several things we need to improve if we want to beat Bolivia, but the important thing is we improved on our performance from the first match today," Vidal said.
"It's nice to be scoring goals for the team, but the most important thing is our objective to be champions," he added.
