Too good. He's just too good. Sergio Aguero bamboozles the Sunderland defence once more with a clever late run across the front of goal, he meets a through ball from sub James Milner and caresses in a cushioned half volley at the near post.

Simple, but so effective. If his first goal was a 300-yard drive, that was a chip out of the bunker to within six inches.

Image source, AP

Jonathan Overend
BBC Radio 5 live at Emirates Stadium

"Great save from the big man Fraser Forster who has kept Southampton in it as he denies Arsenal on two occasions in quick succession."

Olivier Giroud has made all the difference! His first-time lay-off is brilliant, wrong-footing the Saints defence and teeing up Danny Welbeck for a snap shot from 15 yards. Welbeck middles it, plenty of power, but one enormous hand from Fraser Forster is enough to push it wide.

Much better since the introduction of the big man. 4-4-2 is the future.

There have been three shots on target at the Emirates all night. Not good enough.

Make that four! Olivier Giroud stings the palms of Fraser Forster with his first touch.

Clive Allen
BBC Radio 5 live

"A different problem for Spurs to deal with now, but Drogba gets a big handshake from his manager for a job well done.

"A chance for Remy now to impress."

Didier Drogba has a goal and an assist and he also has an early exit - here is Loic Remy for a rare chance to impress.

Jonathan Overend
BBC Radio 5 live at Emirates Stadium

"I haven't heard boos for an Arsene Wenger substitution before.

"Oxlade-Chamberlain very unhappy at being taken off and plenty of home fans equally as disgruntled."

Into the final 25 minutes of tonight's games.

Here is Olivier Giroud. A man who must spend at least 25 minutes on his hair before every game and post-match interview. Structurally sound.

There are loud boos in the air as Giroud replaces Alex Oxlade-Chamberlain. Who did the Gunners fans want replaced?

Neil Emery:, external Interesting how Sunderland parked the bus against Chelsea and yet have tried to play attacking football against Man City?

Jonathan Overend
BBC Radio 5 live at Emirates Stadium

"It's a restless atmosphere around me at the moment from the home fans.

"Looks like Giroud is getting ready to come on and Arsenal need a plan B here.

"Southampton very well-organised and quick on the break. Arsenal simply not doing enough."

Image source, Getty Images

Dutch defender Virgil van Dijk cracks in his sixth goal of the season to put Celtic 1-0 up on Partick Thistle. Rangers looked to be cruising at 2-0 when Dean Shiels doubled their lead but Alloa had other ideas and a couple of quick-fire goals from Greig Spence and Ryan McCord have levelled the Petrofac Training Cup semi-final.

Follow the action on our Scottish live text.

Jan Vertonghen heads powerfully over before a tiring Didier Drogba drags a shot wide at the other end. Chelsea look utterly comfortable to be honest.

BBC Sport chief football writer Phil McNulty at The Emirates

"All very subdued here. Arsenal struggling to make the breakthrough but Southampton look dangerous on the break. Gunners fans keeping their frustrations under wraps - for now."

MOTD's Steve Wilson at Stamford Bridge

"Tottenham are playing against an opponent with a longer reach and a harder punch. They are not really getting anywhere."

You don't get many better finishes from a full-back. Long-range scorchers, sure. But composed, inside the area clips over the keeper? Can't think of too many...

Sam in Manchester: I'd love to see Pablo Zabaleta's touch map for this game. He's been playing as a second striker all game. Also, what a finish by the man!

Santi Cazorla - what was that? Horrible shot, way, way over the crossbar. Someone needs to kick this game up the unmentionables. Quite frankly, they are letting the night down.

Robert Snodgrass
Hull City midfielder on 5 live Sport

"We've seen three or four keepers beaten at the near post tonight.

"But that's a great finish from Sone Aluko, who has taken his chance well there and looks absolutely delighted."

Hull are bang on form now. Nikica Jelavic climbing above Gareth Barry to send a powerful header inches wide of the far corner! Tim Howard didn't move...