You can see both sets of teams here.
Atoning for a poor showing in the delayed Joe McDonagh Cup will be in the minds of many Westmeath players today.
It was a paltry effort in 2020 losing their opening four games on the spin.
They've endured another difficult campaign in division one of the Allianz Hurling League which could yet culminate in relegation, a late season shootout with Laois will determine that.
Shane O'Brien like many managers has been plagued by injuries since the resumption of training and games, none more so than the loss of star transfer Davy Glennon who was shaping up as a strong leader in the dressing room.
Their opponents needed extra-time to squeak past Kildare in St.Conleths Park last weekend.
How good that form is remains to be seen but Carlow have been posting some serious scores during the league, notably 5-28 against Meath and 3-25 against Kerry. They managed another 2-22 last weekend so the rear guard action from the Lake County will have to be excellent.
A win sets things up for a group topping performance against Kildare next week while a loss would turn it into another relegation contest.
The starting XV is:
Noel Conaty; Darragh Egerton, Tommy Gallagher, Conor Shaw; Aaron Craig, Tommy Doyle, Derek McNicholas; Cormac Boyle, Robbie Greville; Aonghus Clarke, Killian Doyle, Joey Boyle; Niall O'Brien, Niall Mitchell, Ciaran Doyle.