7:45pm: Southampton vs Arsenal
Full time: Southampton 4-0 Arsenal
As comprehensive a win in the Premier League as you are likely to see this season. Southampton sweep aside Arsenal with their first win in December as Cuco Martina, Shane Long's double and Jose Fonte all score after the lifeless Gunners. Another twist in the title race as Manchester City close the gap, as Arsene Wenger's side miss the chance to go top.
Well that is all we time for on this live text. It has been a whirlwind of a day in the Premier League with shocks, stunning goals and drama at every turn. We do it all again on Monday 28 December with Manchester United vs Chelsea the headline game. Until then goodbye.
Goal: Southampton 4-0 Arsenal (Shane Long)
Shane Long has run his heart out tonight and he gets a deserved second in stoppage time. Long collects the ball between Mertesacker and Monreal, waits for Cech to go to ground before hammering home. Unbelievable.
Long should have made it four but his strikes the post with Cech all over the place. A passage of play which has summed up Arsenal tonight, sloppy in every area.
All done bar the shouting this one. Arsenal fans have seen enough and many are already making tracks for the trip back to north London. Southampton have been terrific tonight.
Almost a consolation for Arsenal but Ozil's effort trickles across the line and stays out. The north Londoners have been very poor tonight.
It has been one-way traffic at St Mary's and Southampton almost grab a fourth as Tadic shoots from range and it dips horribly on Petr Cech who is forced to punch the ball clear.
Goal: Southampton 3-0 Arsenal (Jose Fonte)
Game, set and match on the south coast and it hasn't even been close in fairness. Jose Fonte comes in unmarked and plants a header past Petr Cech to put the cherry on this Southampton performance. What a reaction this has been to Ronald Koeman's criticism.
Alex Oxlade-Chamberlain on for Joel Campbell for Arsenal. Just under half an hour to go and yet you just can't see them making a comeback in this one. Famous last words....
Goal: Southampton 2-0 Arsenal (Shane Long)
Southampton double their lead and Arsenal look gone here. Mane springs free and after Shane Long and Laurent Koscielny clash, which sends the French defender sprawling, the Irish striker collects the cross and passes past Cech. Arsene Wenger is fuming but the goal stands, and you can't say it isn't deserved.
Ball in the net again for Southampton but it is chalked off for offside. Van Dijk beats Cech to the ball from a free-kick but Jose Fonte, who also goes for the ball, is fractionally offside as he heads the ball home. Cech has taken a knock in the process of the goal being scored but he is fine to continue.
Players out for the second half at St Mary's. No changes at the break and we're back under way.
Half time: Southampton 1-0 Arsenal
Cuco Martina's stunning strike has Southampton deservedly ahead at the break. Saints have hustled and harried the visitors and have unequivocally been the better side. Mesut Ozil has been quiet for Arsenal but the only positive for Arsene Wenger is the succession of missed chances that have come and gone for the hosts, with Shane Long the guilty party.
Shane Long with a horrible miss. The Irishman is played in by Mane, gets away from Mertesacker and as he goes to knick the ball over Cech he gets too much on it and the ball balloons over the bar.
Theo Walcott with another effort on goal, totally unmarked from an Ozil corner but he only finds the side-netting. Slight improvement from the Gunners.
Arsenal have been nowhere since going behind but finally they test Stekelenburg but Walcott's effort is weak and it is an easy save for the Dutchman.
Jordy Clasie and Mesut Ozil involved in a bit of handbags off the ball; a sign of the frustration that Arsenal are currently experiencing. Southampton have the ball in the net meanwhile but Shane Long is penalised for a tug on Mertesacker.
Arsenal contributing to their own problems and they should be two down. A long ball forward is mis-judged by Koscielny and Long steals in but his control lets him down before the loose ball falls to Davis who is off balance and can't make decent contact. The Gunners are rattled here, like they were at St Mary's 12 months ago.
Southampton in total command now since taking the lead and they come close to a second but James Ward-Prowse's radar is slightly askew and he curls over the bar from 20 yards.
Goal: Southampton 1-0 Arsenal (Cuco Martina)
You won't see a better strike all season I guarantee you. Per Mertesacker heads the ball clear and Martina comes onto the ball with the outside of his right foot and hits and absolute howitzer which flies past Petr Cech. Unbelievable strike.
Another opportunity for Arsenal as Campbell's cross in towards Giroud runs loose and Monreal runs onto it but is denied by Stekelenburg.
Arsenal's most cohesive move of the game and they carve Southampton wide open. Aaron Ramsey plays a superb pass to find Monreal but the Spaniard's cross is deflected onto the roof of the net.
Not must flow or structure to this game so far. Southampton seeing plenty of the ball but in areas that can't hurt Arsenal. Not a great game so far.
Under way at St Mary's and Arsenal have the first chance inside two minutes as Giroud heads over the bar from a corner.
Worth mentioning that Arsenal's players are wearing black armbands to mark the death of their former manager, the pioneering Don Howe, who passed away in the week.