Neymar returned from injury to help inspire Brazil to a 4-1 victory over South Korea on Monday as the favourites cruised through to the quarter-finals of the World Cup.The world's most expensive player had sat out his team's last two matches with a sprained ankle suffered in their first game in Qatar, a 2-0 win over Serbia.But he came back for this last-16 tie as Tite's team clicked into gear and delivered an ominous message to their rivals, at least before easing off in the second half.Vinicius Junior opened the scoring inside seven minutes before Neymar added another from the penalty spot to move to 76 goals for his country, leaving him just one away from equalling Pele's all-time record tally.Richarlison's brilliant goal made it 3-0 and Lucas Paqueta added another before half-time to leave South Korea shellshocked.Paik Seung-ho pulled one back but by then Brazil were thinking about Friday's quarter-final clash with 2018 runners-up Croatia.The five-time World Cup winners had not scored four goals in a knockout game at the tournament since 1998.Here they played at times with the joy associated with the Brazilian national team, the players coming together to celebrate each goal by showing off their dance moves and their coach even joining in.If they finished playing within themselves, their first-half display was superb and a fitting tribute to the great Pele.The Brazilian legend had said he would watch the game from the Sao Paulo hospital to where he was admitted last week amid ongoing treatment for colon cancer, and supporters in Doha's Stadium 974 unfurled a banner with a get well soon message to him.All of it was a chastening experience for Son Heung-min and South Korea, who have still never won a World Cup knockout