IRELAND assistant coach Mike Catt insists there is plenty more to come from rookie fly-half Jack Crowley ahead of his maiden Six Nations appearance in Dublin.

Crowley celebrated his full debut in the championship by overcoming a few kicking errors to help his country register a thumping 38-17 round-one win away to France.

The 24-year-old is expected to retain the number 10 jersey for Sunday’s clash with Italy at Lansdowne Road as head coach Andy Farrell searches for Johnny Sexton’s long-term successor.