Swasnea manager Roberto Martinez hopes to avoid a FA Cup upset

The part-timers held the Swans 1-1 at their Atspeed Stadium 10 days ago and Martinez knows his side face a battle.

"Everyone hopes for us to slip, and to lose the game against Horsham is a bit of a fairytale story and we are on the wrong side of the situation," he said.

"We need to be ready for them and on top of our game."

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League One leaders Swansea will be raring to go, after their match at Bristol Rovers on Saturday was postponed due to a waterlogged pitch.

But Horsham also did not play after they called off their Ryman League Premier Division game with AFC Wimbledon to help them prepare for the replay.

The winners will face Blue Square South outfit Havant & Waterlooville at home in the third round and Martinez wants his side to be on full alert.

"Anyone can really raise their game on one occasion and make it really difficult and get a result," he said.

"In one game anything can happen and we need to be ready for that and that means we need all the fans behind us and make it difficult for Horsham.

"I think it will be an attractive game to watch and hopefully our performance will be at the level we have been performing."