English winger who won the 2011 Scottish Cup and the 2011–12 Scottish Premier League with Celtic FC.
He signed his first professional contract with Stoke City on his 17th birthday.
He set a Scottish Premier League record for fastest goal by scoring in 12.2 seconds during a match against Aberdeen.
His younger brother Spencer was a professional soccer player before suffering a career-ending injury in 2002.
He was teammates with striker Leigh Griffiths on Scotland's national team from 2012 to 2013.