Arsenal played with the style, pace and confidence of their glory days under Arsene Wenger to crush Norwich City 4-1 to underline their title credentials at the Emirates Stadium on Saturday.
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The Gunners, without a trophy since 2005, gave their fans renewed hope that that famine could end this season with Jack Wilshere and substitute Aaron Ramsey scoring outstanding goals with the other two coming from club record signing Mesut Ozil.
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The win lifted Arsenal, temporarily knocked off top spot after Liverpool had played earlier in the day, back to the summit of the Premier League with 19 points from eight matches, two points clear of Chelsea.
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"We had periods when we were absolutely outstanding and periods when we suffered as well because Norwich played well and they are a good side," Wenger told Sky Sports.
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"But we scored a fantastic first goal and the goals after that were absolutely amazing. We took advantage of Norwich getting tired in the last 20 minutes in a very clinical way. But they made it difficult for us."
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Chelsea, who came from behind to beat Cardiff City 4-1 moved on to 17 points and into second place, above Liverpool on goal difference.
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Chelsea, who started the day in third place, fell behind at Stamford Bridge after some woeful defending by David Luiz who allowed Jordan Mutch to score after 10 minutes.
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Luiz's mistake meant that Petr Cech, making his 300th Premier League appearance, could not mark the occasion with a clean sheet, but that was a minor irritation as Chelsea bagged all three points.