Danny Sonner commenced a distinguished professional football career as a midfielder with Wigan Athletic in 1990, establishing a reputation for his excellent vision and passing skills. He quickly progressed, signing with Burnley in 1991, followed by a loan spell at Bury in 1992. Sonner then gained international experience during a period in Germany, playing for FC Erzgebirge Aue in 1993 and Preußen Köln in 1995. Upon his return to English football, he joined Ipswich Town in 1996, where he made 56 league appearances over two seasons.
Internationally, Sonner earned 13 caps for Northern Ireland between 1997 and 2004, having also represented the Northern Ireland B national team four times, scoring one goal. Following his tenure at Birmingham, he moved to Walsall in 2002, Nottingham Forest in 2003, and Peterborough United in 2004. His significant and popular spell at Port Vale began with a loan in 2005 before a permanent signing the same year, making 75 league appearances, his highest count for any single club. After departing Port Vale in 2007, Sonner briefly returned to Walsall before concluding his extensive 18-year professional playing career with Wrexham in 2008.
Having competed across 14 clubs and all four top divisions of English football, Sonner seamlessly transitioned into a dedicated soccer coaching role, leveraging his deep practical experience. In August 2015, he was appointed as a staff coach at Savannah United in Savannah, Georgia. In his ongoing capacity at Savannah United, Sonner continues to be a driving force in youth development, inspiring and mentoring young talent with the benefit of his distinguished background as a former Northern Ireland international footballer. His comprehensive understanding of the game, developed over a nearly two-decade professional playing career spanning 14 clubs, provides invaluable guidance to aspiring athletes, making him a highly sought-after mentor in the sport.