Ross County manager Derek Adams knows the Clydesdale Bank Premier League newcomers will have to remain at their best to progress past Raith Rovers in the Scottish Communities League Cup.
The Dingwall side have made an impressive start to their SPL campaign, stretching their unbeaten league run to 38 games and losing just one goal in games against Motherwell, Aberdeen, Celtic and Dundee.
But Rovers have made an equally positive start to their campaign. Grant Murray's side have won five games and drawn one from six and have not conceded a goal in the Irn-Bru First Division.
Raith held County to a 1-1 draw on their previous two meetings in the league and also in a friendly last month.
Adams said: "Raith Rovers have had an excellent start to the season, they won five games in a row before the weekend.
"They are under new management but a lot of their personnel is the same as last season.
"We have already played them in pre-season and they gave us a tough time."
County's start has no doubt surprised some supporters of SPL clubs, particularly as they were seconds away from beating Celtic, and would be top of the table had Kris Commons not equalised.
But captain Richard Brittain was always confident they could make a positive start.
The former St Mirren midfielder, who has scored both County goals inn the SPL including the winner at Dundee on Saturday, said: "You look at the teams we have played against, Motherwell played in the Champions League, Aberdeen will be pushing at the upper end of the table and Celtic are the champions, and we took points off all of them.
"But that doesn't come as a surprise, we know we have got quality in the dressing room, and experience.
"That was important on Saturday, a lot of the experienced heads talked the younger guys through the game."