Georgios Samaras insists Celtic must get it right against Dundee United when the two sides meet again on cup duty.

The Greece cap scored twice to put the Hoops 2-0 up in Saturday's SPL game but United fought back to earn a point.

The sides next meet in the Co-operative Insurance Cup semi-final at Hampden on January 28 and Samaras said: "We need to learn from our mistakes. We gave them the chance to play good football."