Walsh is currently out of action with an ankle injury, but hopes to be back soon.
“It was an easy decision to make. The club and the fans have been great to me especially after the injury and it felt like the right thing to do. I now want to win things,” he said.
“It has been frustrating for me since the injury; the leg break healed fine but the ankle was grumbling. That is all fixed now and I’m looking forward to getting back on the field. It has been torture really because I had a great start.
“I wanted to play a lot more footy not only for me but the fans too. My motivation is to come back and repay their faith this year and next.
“The combination between me and Travis Burns is exciting and this season on the training field and in the games I played it felt like we’d never been apart. Hopefully, we both stay healthy and then we can get the team going in the right direction.
“I’m hoping to be back in the next week or so.
“The fans have been unreal to me and my family as has everyone in St Helens. The office staff, coaches and medical staff, as well as Eamonn McManus and the board have been unbelievable and I hope to repay that faith with some silverware.”