St Johnstone manager Tommy Wright has told his men to draw on their history of upsetting the odds when they travel to Celtic Park.
The 2014 Scottish Cup winners return to the scene of their greatest triumph when they take on holders Celtic in the fifth round on Sunday.
Wright was in charge when Saints beat Dundee United to lift their first major trophy and experienced victory at Parkhead again the following year when Danny Swanson's goal earned a 1-0 win over the Hoops.
Saints also drew twice at Celtic Park last season and Wright has told his team to have belief ahead of their third game against the champions in 11 days.
Wright told Saints TV: "It's probably the toughest draw you could get, having to go away to the holders and champions.
"They're in great form and it's compounded by the fact we've had to play them twice in recent weeks.
"We know it's going to be a difficult game, we know we're the underdogs but we also know that throughout our history we've thrown up results when people don't expect it.
"We certainly don't think we are going there to lie down – we're going there to try and win the game and get through to the next round."
Saints have lost 2-0 in both of their recent meetings with Brendan Rodgers' side and were beaten 6-0 earlier in the season.
But Wright was more encouraged by their most recent meeting, which saw his side keep possession better and create several first-half chances before conceding two goals in the final quarter of the game.
He added: "We have got to believe we can get a result. We have done well there in the past. In the past seven years since I've been here we have probably taken more points off Celtic than most teams in the league. So we do know how to get a result there.
"You have to have everyone playing at the top of their game and they have to have a bit of an off day."
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