O'Neill: We must stop 'goal machine' Ronaldo

Northern Ireland manager Michael O'Neill hailed Cristiano Ronaldo as a "goal machine" ahead of tonight's World Cup qualifier against Portugal, then told his players they must find a way to stop him.

When Ronaldo steps out at the Dragao Stadium he will, at the age of only 27, become only the third Portuguese player to win 100 caps after Luis Figo and Fernando Couto.