West Ham United goalkeeper Adrian has told the club's official website that he is thankful to Sunderland manager Sam Allardyce.
The Hammers shot stopper has established himself as one of the finest goalkeepers in the Premier League since signing from Real Betis in 2013, and he has continued to impress under Slaven Bilic this season.
It was Bilic's predecessor Sam Allardyce who signed Adrian though, taking a punt on an unknown Spanish goalkeeper in a deal which has certainly paid off.
This weekend, Allardyce makes his first return to East London since leaving the club back in May 2015, as his Sunderland side travel down to Upton Park for the final ever time, with the two teams meeting in a vital Premier League clash.
West Ham need the points to continue their push for European qualification, whilst Sunderland are in a relegation battle and desperately need the points to haul themselves away from trouble.
Allardyce should receive a warm response from the West Ham crowd after four solid in spectacular years as West Ham boss, and goalkeeper Adrian says he has lots to be thankful to 'Big Sam' for.
Speaking to the West Ham official website, Adrian thanked Allardyce for flying over to Seville to watch him before signing him - and hopes he keeps Sunderland up this season.
"I have many reasons to thank Sam Allardyce because he brought me to West Ham United," said Adrian. "He went to Seville to watch me in some games before he signed me and Sunderland need to work hard to save their situation in the Premier League. After Saturday I hope they can keep their Premier League position because I have appreciation for Sam," he added.
How will you greet Allardyce's return this weekend?