Thistle boss Stuart Davidson believes that his side are capable of netting a crucial victory at Beith to keep their survival hopes alive, 2pm kick off at Bellsdale Park.
However, the Largs manager is demanding maximum effort and attitude from all his players after a disappointing defeat to Rob Roy in the West of Scotland Cup on Saturday.
The Barrfields men are sitting in a third bottom relegation play-off spot in the McBookie.com Premier Division, with Kilwinning and Troon in the drop zone but with games in hand.
Iain Fisher should be back to face his former team for the first time since re-joining Largs, and Creag Little has sat out his suspension and is available to play, sitting on the bench on Saturday. Defender Alan Gilbride missed the Rob Roy game because he was getting married.
Looking towards the massive encounter at Beith, Stuart said: "It is another hard ask against another top quality team, and on our day, we can give anyone in this league a game, but it depends on what team turns up
"Every one of our player needs to be on the top of their game, and pull their weight, and give a shift. We need to give everything they have got just to give ourselves a chance against a very good Beith side."
The Largs boss was unhappy with the first half display against Rob Roy on Saturday: "We just didn't turn up, we didn't really get a grip of the game until the second half when we were a man down. The early yellow card for Matthew Ashe set the tone for the match. Matthew did a great job in the last round against Beith. We were poor from the first kick of the ball which resulted in Matthew getting his first booking because of our slackness.
"Rob Roy deserved to go into the next round but we had a couple of chances here and there, and we could have stayed in the cup. At times this season we have played well and lost the game on some occasions, but this time I didn't feel that we did enough.
"The second goal came at the end of the match when we were tired. We did great to stay in the game for as long as we did, and defended well in the second half, but my question is why didn't we do that in the first half.
"We have set high standards, and I felt even in the Cumnock cup game, we were good, but we must really must give our all against Beith."
After the Beith encounter, Largs face a long wait until they play their last game at home to Auchinleck as the current league leaders have a two legged Scottish Cup semi final tie.
Thistle lost to Beith after a deflected goal in their last league encounter at Barrfields, but overcame the Garnock Valley outfit on penalties in a West of Scotland Cup tie earlier this year.