- Watford beat Arsenal for the first time in the Premier League
- Former Tottenham defender Younes Kaboul's deflected free-kick puts Hornets ahead.
- Troy Deeney doubles lead after 13 minutes.
- Alex Iwobi halves the deficit after half time.
- Arsenal lose further ground in the title race.
- Follow all the moves on January transfer window deadline day.
So Arsenal miss the chance to breathe new life into their title challenge as they are beaten in the league by Watford the first time since 1988. That probably buries them as far as the title is concerned, while the Hornets claim victory on the eve of Graham Taylor's funeral on Wednesday.
Well that is all we have time for on this live blog. We're back tomorrow with a round-up of all the January transfer window deadline day deals, but until then goodbye.
Full time: Arsenal 1-2 Watford
Watford win at Arsenal in the league for the first time since 1988 and all-but end the Gunners' title hopes. Younes Kaboul struck a deflected free-kick before Troy Deeney doubled the lead with barely a quarter-of-and-hour on the clock.
Arsenal did rally, belatedly, and Alex Iwobi pulled one back. However, the comeback could not be completed and Watford held to claim a valuable victory in their bid to avoid the drop and all but extinguish Arsene Wenger side's hopes of ending their long wait for a league title.
Perez denied by Gomes in the final minute of added-on time. Watford looking odds-on to see this through.
Five added-on minute at The Emirates Stadium. Is that enough for Arsenal, or indeed for Watford?
Mesut Ozil plays one pass too many and Watford survive again. Approaching stoppage time, when Arsenal normally come alive.
Arsenal produced a late salvo against Bournemouth, Preston and Burnley; but can they do it again tonight? Watford sitting deep and standing firm. Yellow card for Okaka for leaving a foot in on Mustafi, but it only disrupts Arsenal's flow.
Lucas Perez smashes the ball against the underside of the bar. No idea how that stayed out, and it came just as Arsenal looked to be running out of ideas.
Stefano Okaka on for Watford, with potential match-winner Troy Deeney going off. Five minutes left for the visitors to hold out, and Arsenal to level.
Nacho Monreal with a volley with real shape and vigour, but it flies wide of Gomes' goal, who is yet to be tested since Iwobi's strike. Watford showing great resolve here.
Into the last 10 minutes and perhaps for the first time since Arsenal pulled one goal back, Watford look comfortable. Little doubt that any remaining life in the Gunners' title aspirations will die tonight if they can't strike late here.
Alex Iwobi diverts Arsenal back into the game.
Bit of a lull in the game as we enter the final 20 minutes. Arsenal pilling on the pressure but Watford are showing their physicality when possible. Lucas Perez on for Arsenal but can he force a late goal?
Should Watford have a penalty? Capoue goes through again and Coquelin lunges in dangerously, but gets the ball and Arsenal even win the goal-kick. Great decision by Andre Marriner.
The rain continues to fall at The Emirates Stadium.
Arsenal queuing up looking for an equaliser. Theo Walcott is denied by a block by Britos. Watford are being torn to shreds at times and this 2-1 lead couldn't look more thin.
GOAL! Arsenal 1-2 Watford (Alex Iwobi)
A lifeline for Arsenal as they pull one back just before the hour mark. Sanchez is denied a penalty but he is back into the action as he crosses for Iwobi, who sends his cushioned volley back from where it came and into the corner. Watford rocking, it must be said.
Britos and Cathcart hesitate and the ball falls to Ozil, but Gomes makes another low save. Watford merely surviving.
Watford cut apart again as Iwobi and Sanchez exchange passes, but Gomes gets down low to deny the Nigerian. Arsenal a matter of time away from an opening goal.
An Arsenal fan takes a break from watching the game to blame Arsene Wenger.
Arsenal coming at Watford in waves now and they should be back in the game. Iwobi shifts the ball on quickly and Walcott is left one-on-one with Gomes, but the Brazilian makes a good low save.
Aaron Ramsey compounded a wretched half for Arsenal with a first half injury.
Much better from Arsenal in the opening minutes of the second half. They press high and Watford succumb, but Theo Walcott can't find the target when presented with a good opportunity.
Alexix Sanchez now playing through the middle for Arsenal. While that change does see their hat-trick hero from the weekend come on, it does curtail their aerial threat -not that a physical battle with Watford was ever likely to work.
Theo Walcott coming on for Arsenal. He'll need a magic wand to get Arsenal out of the whole they've created for themselves here. He replaces Olivier Giroud as the second half gets underway.