Career

He is best known for managing Linfield between 1997 and 2014. He began his professional playing career with the club, following a spell in the Manchester United youth team, and also played for Ards and Larne. Born in Newtownards, Jeffrey began his football career as a schoolboy with Manchester United, but never played in the first team

He joined Linfield in the summer of 1982.

He played for Linfield for 10 years and was club captain for much of that time. Jeffrey scored the crucial away goal against Shamrock Rovers in the 1984-1985 European Cup.

He left Windsor Park for his hometown club, Ards in the summer of 1992 reuniting him with former boss Roy Coyle and in February 1995 joined Larne as player-coach. Linfield

In April 1996, Jeffrey returned to Linfield as assistant manager to Trevor Anderson.

Jeffrey was appointed as Linfield manager on 4 January 1997 after Anderson resigned.

In the 2005-2006 season, Jeffrey guided Linfield to a clean sweep of domestic trophies, missing out only on the cross-border All-Ireland Cup. On 6 June 2006, Jeffrey signed a new four-year contract, the longest contract in Linfield history. His previous deal had one season left to run.

By January 2014, he had extended this record to 32 awards.

On 15 February 2014, Jeffrey announced that he was to step down as manager of Linfield at the end of the 2013-2014 season. He was replaced by former Northern Ireland international, Warren Feeney.

Ballymena United

On 7 March 2016, it was announced that Jeffrey had been appointed the new manager of Ballymena United, following the sacking of Glenn Ferguson. Irish Premier League/IFA Premiership (9): 1999–2000, 2000-2001, 2003-2004, 2005-2006, 2006-2007, 2007-2008, 2009-2010, 2010-2011, 2011-2012

Irish Cup (7): 2001-2002, 2005-2006, 2006-2007, 2007-2008, 2009-2010, 2010-2011, 2011-2012

Irish League Cup (6): 1997-1998, 1998-1999, 1999–2000, 2001-2002, 2005-2006, 2007-2008

County Antrim Shield (6): 1997-1998, 2000-2001, 2003-2004, 2004-2005, 2005-2006, 2013-2014

Setanta Cup (1): 2005

Irish League Floodlit Cup (1): 1997-1998

Jeffrey, who lives in Glengormley, has a career in social work alongside his football interests.

Achievements

• In June 2008, Jeffrey won his 23rd manager of the month award, breaking the record for monthly awards. Alongside Roy Coyle, Jeffrey is Linfield"s most successful manager in history, having won 31 trophies during his 17-year tenure. Roy Coyle also won 31 trophies with the Blues during his managerial career from 1975 to 1990. Jeffrey won 31 major honours as manager of Linfield. Irish FA Charity Shield (1): 2000.

Membership

Orange Order]

He is a member of the Orange Order.