What happened: Lionel Messi is in Argentina's starting lineup against Austria, needing a single goal to surpass Miroslav Klose as the all-time leading scorer in World Cup history. He also sits one assist behind Diego Maradona for the most assists in tournament history. Messi enters level with Klose after a hat-trick in Argentina's opener.

Why it matters: A goal would give Messi sole possession of the sport's most prized individual record at its biggest event, in what is his sixth World Cup. The assist mark would move him past a fellow Argentine icon in Maradona, sharpening his case as the country's greatest ever. Both records are within reach in a single match.

What to watch: Watch how early and how often Messi is involved, with one goal or one assist enough to rewrite a World Cup record during the match.