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Ahead of the match at the Liberty Stadium, we take a look at how the sides' midfielders Glyfi Sigurdsson and Dusan Tadic compare.
Third placed Swansea welcome fourth placed Southampton, who will arrive full of confidence following their 4-0 demolition of Newcastle.
New signing Graziano Pelle looks a snip at £8m with four goals already for the Saints, who are defying expectations following their summer exodus of talent. The losses of Adam Lallana, Calum Chambers and Dejan Lovren have been managed well so far by new boss Robert Koeman, whose side have registered eight league goals already this campaign.
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