TNS face Bulgarian side CKSA Sofia later tonight, with a place in the Europa League at stake for the winners over two legs.
The Saints have a near full-strength squad to choose from, with just full back Chris Marriott and Aeron Edwards unlikely to feature.
Marriott is still struggling with an injury picked up in the Champions League against Anderlecht, while Edwards is carrying a knee injury.
CSKA have been shaken during the run-up to the game, with manager Pavel Dochev departing at the weekend after a poor start to the season, followed by an inquiry by UEFA into the eligibility of a player in the last round.
Sasho Borisov will take charge of the team for tonight's game.
However, Spas Delev, the loan player in question, has been cleared to play against the Welsh champions after UEFA cleared his registration.
Rumours had circulated that the Bulgarians would be thrown out, with Cliftonville reinstated in their place, however UEFA moved quickly deny this.
Manager Mike Davies accepted CSKA will offer a tough challenge. But he said: "We are big underdogs and we are under no illusions but they are no Anderlecht. They haven't started brightly in their league, and their discipline is also a bit of problem.
"We can take positives from that and give it our best shot. We have watched some videos and I went to see them last week so let's see what we can do.
"The main thing for us ideally is to get the away goal and make sure we keep their score down so we've got to make sure we are focused on the task.
"The humidity could be difficult and we can expect a hostile atmosphere but the lads are experienced and I'm sure we'll adapt."
The game takes place in Sofia at 7.30pm at the Vasil Levski Stadium, Sofia.