Southampton shockingly turned the form book upside down by hammering Arsenal 4-0 at St. Mary's Stadium on Boxing Day.
The Saints went in to the game having lost four of their last five games, picking up just one point from a possible 15 point and scoring two goals in that time.
Meanwhile, Arsenal had beaten Manchester City 2-1 on Monday, and could have gone top with a win, with many expecting a Gunners victory.
However, the Saints tore into Arsenal time and time again, with goals from Cuco Martina, Shane Long, Jose Fonte and another from Long handing Ronald Koeman's men a stunning 4-0 victory.
The big story of the game wasn't so much Arsenal's remarkable collapse on the South Coast, but more surrounding Cuco Martina's amazing goal.
The Curacao full back joined the Saints from FC Twente over the summer, and was making his first Premier League start in the game against Arsenal.
In the first half, the ball fell to Martina around 25 yards out, and he produced a perfect shot with the outside of his right foot, which curved in to the corner and past Petr Cech.
It was a stunning introduction to the Premier League for Martina, who many people hadn't even heard of before the Arsenal game - but they certainly know him now.
Just after the goal, Match of the Day host Gary Lineker took to Twitter to state that it could be a contender for goals of the season, whilst ex-Southampton hero and current Sky Sports pundit Matt Le Tissier also celebrated Martina's amazing goal.
Here are the reactions from Lineker and Le Tissier after Martina's goal for Southampton against Arsenal...
Martina should be fined for attempting that. As it turns out it could be goal of the season. Stunning effort!— Gary Lineker (@GaryLineker) December 26, 2015