Review of Sunday's Premier League

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A review of Sunday's action in the Premier League.

Diego Costa made a goalscoring return as Chelsea extended their lead at the top of the Premier League to eight points with a 2-0 win over Hull.

The Spain striker was left out last weekend amid reports of a bust-up with manager Antonio Conte and interest from China - the official line was a back injury.

There were certainly no signs of discomfort against Hull for Costa, who was acclaimed by the home fans after putting Chelsea ahead during nine minutes of first-half stoppage-time following a worrying injury to Ryan Mason.

Gary Cahill added a second late on to make sure of the three points for the Blues.

Alexis Sanchez kept his cool to net a last-gasp penalty as 10-man Arsenal beat Burnley 2-1 to move up to second in the Premier League.

The Clarets looked like taking just their second point on the road this season when Andre Gray powered home a stoppage-time spot-kick to cancel out Shkodran Mustafi's first Arsenal goal.

Premier League

1 Chelsea 55
2 Arsenal 47
3 Tottenham 46
4 Liverpool 45
5 Man City 43
6 Man Utd 41
7 Everton 36
8 W Brom 32
9 Stoke 28
10 West Ham 28
11 So'ton 27
12 B'mouth 26
13 Burnley 26
14 Watford 24
15 Leicester 21
16 M'boro 20
17 Swansea 18
18 C Palace 16
19 Hull City 16
20 S'land 15

last updated 22/01 18:31

But, in the last of the seven additional minutes, referee Jon Moss - who had already dismissed Granit Xhaka and sent Arsene Wenger to the stands - pointed to the spot once more and Sanchez made no mistake in sealing a remarkable win.

Mustafi had headed the hosts ahead with his first goal for the club but Xhaka's ninth red card since 2014 left the Gunners a man down as Burnley looked to fight back.

Their efforts were set to go unrewarded until substitute Francis Coquelin tripped Ashley Barnes in the box and Gray lashed home Burnley's fourth away league goal of the campaign.

Wenger was sent off for remonstrating with Moss and was not on the touchline as the referee pointed for a second penalty after Ben Mee caught Laurent Koscielny with a stray boot.

It was Sanchez who stepped up to coolly chip home for the goal which lifts Arsenal into second spot following Tottenham's draw and Liverpool's defeat on Saturday.

James Ward-Prowse, Jay Rodriguez and Dusan Tadic condemned Leicester to their 11th Premier League defeat of the season as Southampton triumphed 3-0 at St Mary's.

The reigning champions have now lost half their Premier League matches this term, to sit just five points above the relegation zone.

Southampton eased to victory, leaving Claudio Ranieri's Leicester looking short of ideas in attack and worryingly frail at the back.

Saints' cruise-control win was tempered by an ankle injury to captain Virgil van Dijk, leaving Claude Puel's men short of centre-backs after Jose Fonte's £8million switch to West Ham in midweek.