St Helens are hopeful that the first match at their new Langtree Park stadium will go ahead as planned despite storm damage.
A triangular section of roofing was dislodged as gales and driving rain swept through the area on Tuesday.
Saints, who played at Widnes's Halton Stadium in 2011 after leaving Knowsley Road, are scheduled to open their new home against Widnes on 20 January.
A club statement said events leading up to the game would continue as planned.
It said: "Contractors accessed the site as soon as weather conditions allowed and they have now taken steps to make the roof safe.
"Work will continue to repair the roof to the highest standard and the programme of events in the run-up to the first match on 20 January against Widnes will continue as planned."