How much will Europe affect Sunderland's second season?

[Getty Images]The belief that promoted sides that stayed up in their first season are often relegated in their second is a popular one, with the phrase 'second-season syndrome' regularly thrown about. But is it as common as people think?Last season Sunderland and Leeds United became the 53rd and 54th promoted sides to survive in the Premier League.Of the previous 52, only 11 were relegated the following season (21%). The vast majority of promoted teams that stay up do not suffer from second-seas