In its first match since winning the Copa America in July, the Albiceleste showed no signs of missing talisman Lionel Messi, still out with an ankle injury, or the now-retired Angel Di Maria, who received a tribute pre-match.

Argentina was on top from the first whistle but struggled to find a breakthrough. However, it received a scare on the stroke of half-time, with Matias Catalan striking the post.

Just three minutes after the break, Mac Allister finally broke the deadlock, finishing off a lovely team move with a low finish.

The hosts' dominance was further rewarded in the 84th minute, with Alvarez rifling a powerful long-range shot in off the underside of the bar, giving Gabriel Arias no chance.

Paulo Dybala added some gloss to the scoreline in stoppage time, marking his return to the national team by beating the goalkeeper at his near post.

Argentina remains top of the qualifying with 18 points, while Chile sits second-from-bottom with just five.

Argentina won all seven matches played at the Monumental during Lionel Scaloni's tenure as coach. During that time, the Albiceleste scored 14 goals and conceded none, averaging 17.7 shots per game and 69 per cent possession.

In this game alone, Argentina had 16 shots, its highest total in FIFA World Cup qualifying so far, with eight of those on target, while it also had 65 per cent possession.