Loughmore-Castleiney play JK Brackens in Templetuohy, with throw-in at 2:30.
With both teams at the summit of the group, the game effectivelty decides who goes into the quarter-finals and the preliminary quarter-finals.
Tipp FM will bring you live updates from that game.
Elsewhere today;
Arravale Rovers take on Cahir in the County Adult Football League Premier Division Final.
Throw-in in Cahir is at 12:30.
At two o' clock Thurles Sarsfields face Clonakenny-Moneygall in the Mid U21 B Hurling Losers Group Final, which is at the same time as the Mid U21 A Hurling Losers Group Semi-Final in Littleton between Holycross/Ballycahill and Moyne-Templetuohy Óg.
A number of games throw-in at 2:30;
Mullinahone play Kilsheelan-Kilcash in Cloneen, in Group 2 of the South U21 A Hurling, while In Clonmel Carrick Swans take on Skeheenarinky/Newcastle in Group 1.
It's Moyle Rovers versus Anner Gaels in Group 2 of the South's U21 B Hurling- that's in Kilsheelan.
Ballylooby/Castlegrace play Grangemockler/Ballyneale in a South Minor B Hurling Play-Off in Fethard.
And the County Junior B Hurling Semi-Final sees Portoe up against Rosegreen at The Ragg.
There's one fixture at 8:00 this evening; that's in Division 1 of the County Adult Football League, where Rockwell Rovers face Fr. Sheehy's in Newcastle.
Turning to ladies football;
The County Minor B Final throws in at 12:00, with Clonmel Commercials meeting Cappawhite in Bansha.
That venue also hosts the Minor C Final from 2:00, with Moycarkey Borris facing Arravale Rovers.
