Le Bris admits this current stoppage - the international break plus a further week because play resumes with the FA Cup quarter finals - will be "useful" for his players who are either out injured or have just returned from spells on the sidelines.
The Black Cats were boosted by the return of Nordi Mukiele, Reinildo and Enzo Le Fee at Newcastle on Sunday, but the trio were only fit enough for a place on the bench.
The fact that all three players will now remain on Wearside rather than link up with international teams will delight Le Bris, who was down to the bare bones for a couple of weeks after a string of major injury setbacks.
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The likes of Romaine Mundle, Bertrand Traore, Jocelin Ta Bi and Nilson Angulo are longer term absentees and might not play again this season, but Sunderland will also hope to be boosted by the return of Robin Roefs in the coming weeks.
It's not known at this stage how long Dan Ballard will be out, with the influential centre-half this week being forced to withdraw from the Northern Ireland squad because of the injury he picked up in the recent Brighton defeat.
But by the time Premier League play resumes when struggling Tottenham visit the Stadium of Light, there's no doubt the injury picture will look a lot more positive for the Black Cats, a major boost with Le Bris' side just three points behind seventh placed Brentford with seven games to play.
"Probably these three weeks will be useful for that," admitted Le Bris.
"We've had as many as eight players injured. The core of the squad is not massive. We have many inexperienced players.
"When those players are missing, it's always more difficult. It could be the case after the international break, but sometimes players have other games as well and they might be injured as well, so we never know."
Such was the shortage of players for a period of games, Le Bris had to name Wilson Isidor on the bench for the Brighton defeat despite the fact the striker was injured, and untried youngsters were also named among the substitutes.
That Le Bris and Sunderland have had to negotiate such a challenging spell of injuries in the build-up to the derby made Sunday's success all the more impressive.
But Le Bris says it's just more evidence of the stirring spirit in the camp on Wearside, with Sunderland having also come through the African Cup of Nations earlier this season when they lost a number of key players.
"I think in this first season, it was probably unexpected to reach the 40 points target so early," he said.
"At the same time, we then struggled because of injuries. Players are a bit tired, which is normal. But probably the most important thing is the identity of the team. I think we belong to a community used to suffering.
"In that situation, we won't look for excuses. We have just been managing the situation through togetherness, through working hard, through the identity of the squad.
"I think in those moments, you can reinforce your pillars and you create the condition for better days, when you have your full squad, a bit more freshness and so on.
"It's important to just think about the identity of the squad. Ten months ago, in the playoffs, it was exactly the scenario of the games. We were not 100% dominant. We had to suffer, waiting for better moments. And when it was on, we won."