Arsenal and Chelsea may have to play-off for third place in Premier League if points finish equal Arsenal's 4-1 win over Wigan on Tuesday night not only moved them back to within two points of Chelsea, (72 versus 70) but cut the latter's goal-difference advantage to one (35 versus 34). It also moved them to within two of Chelsea's goals total (73 versus 71), raising the intriguing prospect of the sides finishing level on points, goal difference and goals scored. For that to happen, Chelsea must draw at home to Everton on Sunday, with Arsenal winning at Newcastle by a single goal and scoring two more than Chelsea. For example, if Chelsea draw 0-0, Arsenal must win 2-1. If Chelsea draw 1-1, Arsenal must win 3-2. Under Premier League rules, if qualification for a competition cannot be determined by points, goal difference or goals scored, the sides involved must play each other one or two times at a neutral venue. Because third place gains automatic qualification to the Champions League and fourth place does not, Chelsea and Arsenal tying would fall into that category. It would also leave the Premier League with a huge scheduling headache, with Chelsea already committed to playing two postseason friendlies against Manchester City in the United States on May 23 and 25. Unless Chelsea are able to cancel one of those friendlies, the fixture may have to wait until after the Champions League final at Wembley on Saturday week. Wembley would be an ideal neutral venue but its availability is unlikely with England playing the Republic of Ireland there on May 29.