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Chelsea went about dismantling Portsmouth in spectacular style last weekend and Big Phil will now be charged with the task of maintaining treacherously high standards. Chelsea may not have it all their own way at Wigan, but should leave a half-empty JJB with a full complement of points. Here’s why…

1. Wigan have failed in six attempts to secure a Premier League victory over Chelsea, losing five and drawing the other.

2. In four of the last five seasons, Chelsea have won their opening two league fixtures. Chelsea beat Portsmouth 4-0 on the opening day this year.

3. Chelsea have taken maximum points from each of their three previous trips to the JJB, scoring six