Karleigh Anthony Jonathan Osborne (born 19 March 1988) is an English football manager and former professional footballer who is the head coach of Brentford Women. As a player, Osborne was a central defender and made over 160 Football League appearances for Brentford between 2005 and 2012. In his subsequent nomadic Football League career, he played for Millwall, Bristol City, Colchester United, AFC Wimbledon, Plymouth Argyle and Grimsby Town. Osborne also played in the Scottish Premiership for Kilmarnock and in non-League football for Hayes, Oxford United, Eastbourne Borough, Aldershot Town and Braintree Town. Club career Brentford Early years (2004–2006) A central defender, Osborne began his career with amateur club South Ruislip Rangers and spent a period with Queens Park Rangers, before trialling with youth system at Brentford at the age of 15, on the recommendation of Bobby Ross. Osborne embarked on a scholarship at the beginning of the 2004–05 season and progressed sufficiently to be named as a substitute in a youthful squad for a Football League Trophy first round match versus Milton Keynes Dons on 28 September 2004. Osborne remained unused during the 3–0 defeat and was named on the bench on two further occasions, before making his debut on the final day of the 2004–05 regular season versus Hull City. He played the full 90 minutes of the 2–1 comeback victory, but did not appear in the Bees' 2005 League One play-off campaign. Osborne signed a professional contract and made three appearances during the 2005–06 season. He spent the final two months of the season on loan at Conference South club Hayes. Breakthrough (2006–2009) An injury crisis early in 2006–07 season under new manager Leroy Rosenior saw Osborne make regular substitute appearances in youthful matchday squads through the first six weeks of the season, before he broke into the starting lineup at right back in late September 2006. He made 24 appearances during a disastrous season, which ended with Brentford's relegation to League Two. Osborne signed a new two-year contract in June 2007 and made semi-regular appearances during the 2007–08 and 2008–09 League Two seasons. Though Osborne captained the team on occasion, a lack of confidence meant that he spent periods out of favour with manager Andy Scott, which necessitated spells away on loan at Conference Premier clubs Oxford United and Eastbourne Borough. Osborne scored the first senior goal of his career in a 1–0 win over Shrewsbury Town