Saints are smarting from a 22-14 loss to the Robins but will have to wait only another 11 days for the opportunity to put the record straight when they return to Craven Park for a fourth-round Cup clash.
The tie, one of only two all-Super League pairings in the last 32, is almost certain to be chosen by the BBC for live screening on Saturday, April 20.
"As a squad, we're all disappointed with our performance," said St Helens utility player Lance Hohaia. "We let down each other, our coach and our fans.
"It is disappointing knowing that we can perform well. We've got great depth and great talent in our squad and, on paper, most people would have picked us to win. It's a good chance to get some revenge. The result last week will be irrelevant when we go back there. It's a new game and the scores are nil-all at the start."
Saints overcame Super League opposition in the fourth round last season with a 40-38 win at Widnes but were knocked out at the quarter-final stage by Wigan, leaving Hohaia still waiting to sample his first experience of Wembley.
"Obviously it's nice to play on the big stages in rugby league and I'd definitely love at some stage to be part of that," he said. "If that's this year then great but there is a lot of hard and some good performances before that can happen."
Leeds, runners-up for the past three years, will host Castleford in the other all-Super League tie while holders Warrington will open their campaign at Championship club Keighley for the second successive year.
North Wales Crusaders full-back Tommy Johnson is hoping to go up against his brother for the first time after the Wrexham outfit were handed a trip Hull, where prop Paul Johnson plays.
Johnson said: "Someone mentioned the other week that I could play against my brother if we got through to the next round, which I hadn't really thought about, so I'm surprised by it."