RTÉ Soccer analyst Lisa Fallon expects the Republic of Ireland to get their World Cup qualification drive back on track with victory against Georgia tonight.

However, Fallon warned that the absence of Heather Payne will be keenly felt unless someone steps up to fill the void.

Payne is unavailable as she has college commitments in the USA. It opens the doors for another attacker - most likely Kyra Carusa - to prove their worth.

"Heather Payne - who has been playing up front, sometimes on the right wing, sometimes as the centre-forward - she's the one who generally burns her GPS!" Fallon told RTÉ's Morning Ireland.

"She does a massive amount of work for the team, really initiates the Irish press.

"She's often the go-to player when Ireland win the ball. Vera [Pauw] likes the team to try and hit her early to release her in behind the opposition defence because of her pace. She's so effective at that.

"She buys time for the rest of the team to get up the pitch and get around her. Also she is very dynamic in terms of taking players on one-v-one in that area. Heather Payne will be a big loss.

"We could see Lucy Quinn up there in the front line tonight and we'll probably see Kyra Carusa starting as well. She did quite well when she came on against Slovakia.

"She's a high level player. It's an opportunity for her to maybe stake a claim on one of those forward positions as we head into what will be a crucial second half of the campaign for the team next year."

Pauw has said that Ireland simply have to get three points after last Thursday's frustrating 1-1 draw against Sovakia.

"It's a must-win game," agreed Fallon, who recently left her coaching role at Galway United to take on a position in FIFA's high performance technical division department.

"The team would have been disappointed with the performance and also the result against Slovakia last week.

"It's really a game Ireland should have own to cement their place for that second position, but tonight gives us an opportunity. If Ireland win they will move up to second place ahead of Finland, who they've already beaten away from home. The key thing is not to allow Slovakia to come into the mix for second place.

"A win tonight does solidify it a little bit against a Georgia team that are well used to setting up against teams to be negative and play on the counter-attack. They have got a little bit of pace, but really I can't see anything other than an Irish win."

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Follow Republic of Ireland v Georgia on Tuesday evening via our liveblog on RTÉ.ie/sport and the RTÉ News app, watch live on RTÉ 2 and the RTÉ Player or listen to live commentary on RTÉ 2fm's Game One (6.30pm)