In return Sunderland offered to take their first team squad for a pre-season friendly at Grimsby for the following summer .
On 29 August 2012 Stockdale became a youth team coach of Premier League side Sunderland .
In return Sunderland offered to take Sunderland 's first team squad for a pre-season friendly at Grimsby for the following summer .
On 29 August 2012 Stockdale became a youth team coach of Premier League side Sunderland .