Gus Poyet says he hates the trend of footballers betraying dressing-room secrets in their best-selling books. Former Sunderland boss Roy Keane has spoken candidly about his time at the club in his autobiography, The Second Half, including his anger when ABBA’s Dancing Queen was played in the dressing-room before one match. Poyet has no problem with ABBA – he went to see the tribute musical Mamma Mia in London – but does take issue with the growing culture of former players and managers revealing stories which he believes should remain private. Sunderland manager Gus Poyet is not a fan of footballers revealing all in their memoirs
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Sunderland manager does not like footballers writing their memoirs
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Gus Poyet will not be reading former Black Cats boss Roy Keane's book
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Wes Brown and John O'Shea will form Sunderland's central defence  in their Premier League clash with Southampton
Former Sunderland manager @placeholder created controversy with the release of his second autobiography