Hull KR dumped 12-man St Helens out of the Challenge Cup at Craven Park.
A Craig Hall brace and tries from Mickey Paea, Greg Eden and Liam Salter saw the Robins home 26-18.
Francis Meli was dismissed in the first half for a horrific-looking high tackle on Hall, who overcame the effects of the clash to score his second try before half-time.
The Robins went in 16-6 and looked on course for a comfortable win.
But they had to survive a scare after the break as Saints came out fighting and briefly took the lead courtesy of tries from Paul Wellens and Mark Percival.
And Rovers were left thanking full-back Eden for the victory after he scored one try and created another for Salter.
Coach Craig Sandercock said he was pleased with the character his side showed to survive Saints' fightback.
He said: "That first 10 minutes after half-time we were very sloppy but there is some character in this team.
"The young kids rolled their sleeves up and in the end I thought we deserved to win."
Sandercock praised Hall for overcoming injury to play a key role.
"Craig has got some whiplash and he's in some discomfort," he said. "He needed to stay on because Kris Welham came off with a shoulder problem and so full credit to him."Full match report to follow.
