The third game was washed out due to rain so were their chances to make it to the knockout stage. "I think first of all we've let the entire nation down and we are really sorry because we've let ourselves down," Mathews said ahead of Sri Lanka's final league stage game against Netherlands on June Monday (June 17).   "We never expected this. I mean, we came across a lot of challenges but those are not something to sort of worry about, but it's unfortunate that we didn't make the second round." "This format is such where you can't take any team lightly. I mean they come up with, they've got nothing to lose and you can't you can't take any team lightly. I mean we've seen that especially over the last few years also especially in this tournament, we have seen teams beating bigger teams. As I always say you can't take any team lightly," the former skipper added, The Island nation's performance was sub-standard given their three consecutive series wins ahead of the ICC tournament. The series wins came against Afghanistan, Zimbabwe and newfound rivals Bangladesh in Bangladesh. Mathews acknowledged the same and agreed that the players didn't do justice to themselves. "That's something that we regret because the way we played Afghanistan, Zimbabwe, and Bangladesh in Bangladesh, I thought we didn't do justice for our capabilities in this tournament," Mathews said. "The way we played against those teams just before the World Cup and then once we came back here and the way we played obviously the wickets were quite different but we didn't do justice to ourselves," he added. Sri Lanka lost to South Africa in their opening match of the tournament before losing to Bangladesh in the next fixture. Their game against Nepal was abandoned due to rain, drawing early curtain to their T20 World Cup campaign.