Danny Williams

The North East pair, Swansea and Aston Villa have all been credited with an interest in USA international Williams, who only has 12 months remaining on his contract with Championship Reading.

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The 27-year-old has made more than 100 appearances for the Royals after joining from German side Hoffenheim three years ago.

Sunderland are in the market for midfield reinforcements this summer, but Sam Allardyce is eager to add quality to his ranks.