Noel King challenges Ireland U21s to prove themselves against world champions Serbia

"Serbian football is on the up. They are at the bar that you judge yourself against these days."

Noel King has challenged the Republic of Ireland Under-21s to prove themselves capable of competing with the best when they face Serbia in their final European Championship qualifiers.

The Republic's hopes of making the finals have long gone after a run of four successive defeats which was finally brought to an end by Friday night's 2-0 home victory over Slovenia.