The South Korean international attacker scored three goals in the 16th, 63rd, and 66th minutes.
The £192,000-a-week (SalarySport) striker has three goals in four Premier League outings for Tottenham this season.
Former Tottenham Hotspur player Graham Roberts says Son is back to his best.
Roberts also lauded England international attacking midfielder James Maddison, who joined Tottenham Hotspur from Leicester City during the summer transfer window.
Son is one of the best in the Premier League 
Son is a significant figure for Tottenham and one of the greatest forwards in the Premier League.
The South Korean did not have a fantastic start to the season, but his hat-trick against Burnley today suggests that he is regaining form.
Of course, we’ll have to wait and see how Son performs in the following matches, but he appears to be returning to form.
Tottenham have had a strong start to the season, and the Tottenham Hotspur Stadium faithful will be hopeful of finishing in the top four of the Premier League table.
Spurs are also playing fantastic football.
