Mauricio Pochettino praised match-winner Noni Madueke’s determination to prove his Chelsea worth after he came off the bench to score a late penalty in his side’s 2-1 win over Crystal Palace at Stamford Bridge.The visitors looked like they had done enough to earn a point as the game ticked into its final moments, until the result turned after a clumsy challenge made by Eberechi Eze, leaving a leg out on the edge of the box for Madueke to tumble over.A pitch-side VAR review was required but it seemed a straightforward call for referee Michael Salisbury, who awarded a penalty from which substitute Madueke stroked home the winner.