's Nick Teale uses the Bettorlogic form lab to analyse the statistics ahead of Sunday's Premier League match.

Arsenal head to Aston Villa on Wednesday night for the first of a run of four Premier League fixtures dubbed as 'critical' to the Gunners' season.
Ahead of games against Manchester United, Liverpool and Chelsea, Arsène Wenger's side are at Villa Park, where last season Arsenal squandered a two-goal lead to leave with a point.
However, the Gunners haven't lost at Villa since December 1998.
Since the start of last season, Martin O'Neill's side have averaged 1.15 points per game against 'Big Four' sides. And this term, Arsenal are the only such club Villa haven't defeated.
They've picked up wins at Old Trafford and Anfield, and also beat Chelsea at home. But when they visited Emirates Stadium this season they were beaten 3-0 in a game that will be remembered for Cesc Fabregas' 27-minute cameo performance.
With the scores level at 0-0 the Spaniard was introduced and promptly scored twice to re-energise the Gunners' performance. However, it came at a cost as he missed the next three weeks of action after aggravating a hamstring problem.
However, the Arsenal captain has scored in both of his Premier League games since returning from injury, striking home and away against Bolton Wanderers.
The 22-year-old's statistics speak for themselves. Since the start of last season, Arsenal have won 13 per cent more Premier League games when he has featured compared with games when he hasn't been involved.
Of Arsenal's 60 top-flight games since the start of last term, Fabregas has featured in 40. In those games, Arsenal have averaged 2.38 goals per match. In the 20 he has missed, the Gunners have scored 1.60 goals per game.

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27 Jan 2010