Halifax v Widnes preview.
O'Carroll in line for Widnes return
Prop forward Eamon O'Carroll will make his first appearance of the campaign when Widnes face Halifax in the fourth round of the Tetley's Challenge Cup.
The Vikings, who have tasted victory in five of their first six Super League matches so far this term, will be looking to continue their strong start to the season with victory over Fax.
The Super League outfit have not beaten Halifax in the Challenge Cup since 1920.