Tipperary boss Liam Cahill has warned his players that they will be facing a much improved Cork side to the one they beat in the Munster Under-20 Hurling final, with the two teams set to meet again in this year's All-Ireland decider.

The Premier booked their place in the 24 August decider with an emphatic 8-16 to 1-15 defeat of Wexford in Sunday's semi-final, with Cork recording a six-point point win against Kilkenny on Saturday.

The final will represent a rematch of July's Munster decider, where an injury-time goal from senior star Jake Morris secured a dramatic win for Tipperary.

And Cahill believes Cork have made significant improvements since that Munster final defeat.

"The Munster final was a great spectacle and this is another game in this saga with these two teams. It's going to be a great occasion and a great match," Cahill told RTÉ Sport. 

"I was in Portlaoise yesterday looking at the Cork v Kilkennny game, and Cork have learned an awful lot from the Munster final. They came really well structured and have found one or two players as well. We really have to be on our toes to get over the line (in the final). 

"You know, you could see the relief in Cork's face (on Saturday), (when) they celebrated on the field, the joy they had when they won it and what it marks for them to get to the final. We're just going to have to be ready to meet a more improved, and a better Cork team that we met in the Munster final."

Four goals inside the opening 22 minutes set Tipperary up for a comfortable win against Wexford at Nowlan Park, with the Munster champions adding another four goals in the second half.

Cahill explained that he viewed his side's ruthlessness as a sign of some good preparation in the lead-up to the game.

"I think the scoreline reflected the respect we gave Wexford. We really prepared well for the game, and didn't allow ourselves to get carried away in any shape or form. I'm just glad that we got the result and we're looking forward to heading into the final.

"As the old saying goes, goals win matches. They were good goals, they were created well by good hard running, taking on the man, and these guys have the quality to put them away when they get the chances.

"You can't but be happy that they took them when the opportunities arose."