sentences:  Michael Appleton, who was then the manager, backed Kelvin Etuhu to shine at Portsmouth and seize a second chance of a football career there.Etuhu made his debut in the 3–2 defeat to Cardiff City on 21 January 2012 and played a starring role a week later in a 3–0 victory at Peterborough United.Following his debut for Portsmouth, Etuhu suffered a hamstring injury.