We profile three men who've played for Sunderland and the Saints.
Trinidad and Tobago international Stern John began his career in the MLS with Carolina Dynamo, New Orleans Riverboat Gamblers and Columbus Crew before a move to Nottingham Forest in 1999.
After John joined Forest, the club suffered from financial problems and John was moved on to Birmingham City in 2002.
After playing over 80 games for Birmingham, where he scored an all-important goal against Millwall to send the Blues into the 2002 Championship play-off final, John joined Coventry City and finished as the Sky Blues’ top scorer in his first campaign.
In January 2007, after three years with Coventry, Roy Keane brought John to Sunderland where he scored five goals in 16 games to help steer the Black Cats to the Championship title.
John scored in his final game for the Wearside outfit in a 2-2 draw with Birmingham before moving to Southampton in August 2007.
He scored 20 goals in 52 appearances at St. Mary’s before spells with Crystal Palace and most recently Solihull Moors.
Kelvin Davis began his career with local side Luton Town, making over 100 appearances for the Hatters before moving to Wimbledon in 1999.
Davis played 146 times for the Dons before moving to Ipswich on a free transfer in 2003.
The 36-year-old was named Championship Goalkeeper of the Year as the Tractor Boys finished third in 2004/05.
After making 93 appearances for Ipswich, Davis joined Sunderland in 2005 and played 35 times as the Black Cats were relegated from the top flight.
He left Wearside after just one season with the Black Cats and moved to Southampton for a reported £2m.
Davis was twice named League One Goalkeeper of the Year as well as picking up the Championship award as the Saints gained back-to-back promotions between 2010 and 2012.
Still a Saints player, Davis has played 279 games which puts him 28th on the all-time appearance list for Southampton.
Chris Makin started his career with Oldham Athletic in 1991 and spent five years with the Latics before joining Marseille in 1996.
The defender spent a year with the French side before returning to England with Sunderland where he made over 120 appearances.
Makin was part of the 1998-99 Division One winning side before leaving the Black Cats for Ipswich Town in 2001.
After three years with the Tractor Boys, Makin spent a season with both Leicester City and Reading before joining Southampton in 2006.
Makin played 27 league games for the Saints before a recurrent hip injury forced him to retire from the professional game in 2008.