Saints star Zeb Taia has appealed to the club's fans to stop throwing bottles during try celebrations.
He tweeted the appeal after his wife was hit on the head during last night's game.
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The second rower said the incident happened following Ryan Morgan's try.
He tweeted: "Great win tonight from the boys!!!
"But need to address something... I love how our fans react to winning big games like that but please have respect to who ever is in the crowd with you guys!!! My wife copped a plastic beer bottle to the head after the Ryan Morgan Try."
Many Saints fans agreed with Zeb, with some saying the problem had existed for much of the season.
Julie Stuchbury wrote: "Its nothing new. Week in week out little boys buying ale just to throw around when we score.
"They need to kick them out or ban ale on the terraces. That would stop them. But why should everyone else suffer.
"Up the legal age limit to 25 that would help. Hope your wife is ok."
And Olivia Aspinall added: "I’m getting fed up this is becoming a weekly occurrence it’s great getting excited and celebrating but no need to throw bottles down. Well played yesterday Zeb, hope your wife is ok."
Saints beat Leeds last night 22-23 courtesy of a last-gasp Danny Richardson drop goal.