Sunderland made its ninth signing since the end of last season with the free transfer of midfielder David Vaughan from Blackpool just hours after wrapping up the signing of John O'Shea.

28-year-old Wales international Vaughan left Blackpool following its relegation from the English Premier League.

He has also played for Crewe and Real Socieded, and Sunderland manager Steve Bruce says ''it's only natural that he caught the attention of a number of top clubs".

Vaughan's signing came the day after Bruce snapped up for Manchester United pair O'Shea and Wes Brown, both on four-year deals.

O'Shea made 256 appearances for United after joining as a trainee. He collected five Premier League titles in his time with the club, as well as Champions League and FA Cup winners medals.

With the signing of Phil Jones from Blackburn and the emergence of the Da Silva twins, Rafael and Fabio, Sir Alex Ferguson has decided to let the versatile O'Shea leave.

Vaughan, O'Shea and Brown join fellow new signings Ahmed Elmohamady, Craig Gardner, Sebastian Larsson, Keiren Westwood, Connor Wickham and Ji Dong-won at the Stadium of Light.

Sunderland finished 10th in the Premier League last season.