 On 7 December 2011, against Birmingham City at the KC Stadium, Cameron Stewart got to the byeline down the right before firing in a vicious cross that was only cleared as far as the penalty spot where Koren readjusted his body to volley into the net.On 17 December 2011, against Millwall at the KC Stadium, a long ball forward was headed down by a Millwall defender and it dropped nicely for Koren, who adjusted his feet well before firing home a low shot from 20 yards out.On 11 August 2012, he signed a new two-year contract.