Pat Spillane believes Tipperary have a real chance of upsetting Mayo in Sunday's All-Ireland semi-final but feels they contain a weakness in their full-back line. 

The weekend's second semi-final is a repeat of the 2016 All-Ireland semi-final, when Stephen Rochford's Mayo side laboured past Tipperary by five points before taking Dublin to a replay in a dramatic All-Ireland final saga. 

Tipperary arrived in the semi-final four years ago via the back door, stunning then Connacht champions Galway in an All-Ireland quarter-final. 

With the championship gone back to straight knockout for one year only, Tipperary pitch up at this year's semi-final following a far more emotional success - claiming a first Munster football title in 85 years, and doing so on the weekend the GAA commemorated the Bloody Sunday centenary. 

Speaking on the RTÉ GAA podcast, Spillane believes that Tipperary match up strongly against Mayo in a number of areas. 

"They have experience. These boys have won All-Ireland minor medals, they've been in an U21 final. There's probably more experience in this Tipperary team than there is in Mayo. These lads aren't afraid of Mayo so they'll come in confident. 

"Great goalkeeper, half-back line outstanding, Bill Maher, Kevin Fahey and Robbie Kiely. They have the advantage in midfield because in terms of primary ball-winners, O'Brien, O'Riordan, and Casey, if he comes out, they're better primary ball-winners than Ruane and Loftus. 

"And then you have the two boys up front. Quinlivan had been having a poor Munster championship. He didn't score against Clare, he only scored a point against Limerick and he was very good in the Munster final. 

"Sweeney is brilliant. Sweeney is an outstanding forward and is nailed on to be an All-Star. 

"Do I have a problem? 40% of their scores in the Munster championship have come from Conor Sweeney. Do I give them a chance? Of course I do! There's a good manager there, great experience, great character. 

"If you told me at half-time in the Gaelic Grounds that this Tipperary team would be an All-Ireland semi-final... they were seven points down against a Division 4 team in Limerick. But they came out after half-time and scored 1-06 without reply."

However, he has reservations about them further back - but he is unsure whether Mayo will properly exploit it, though he ultimately sees the Connacht champions squeezing through "after a struggle."

"If I'm looking for a weak-link in the Tipperary side, I would say it's their full-back line. 

"The only problem I see with Mayo is that I'm not too sure whether they'll utilise the full-forward line. In the first half against Galway, they lost shape. Cillian (O'Connor) drifted out and Aidan (O'Shea) came to midfield. There was no outlet ball and their forward performance against Galway was quite poor.

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