"I am not going to lie, this one is very tough because seven years and to not have a trophy it hurts me deeply," he said. "So, you have to go again. It's tough.
"Very disappointed. Nothing else really I can say other than that. An opportunity to win a trophy and we have come up short, in the worst possible way with the goal we have conceded."
Dier continued: "With the way we have managed to get into the game at the start of the second half, built some momentum, survived the beginning of the first half when we knew it was going to be difficult, they are a great team, it's disappointing.
"People had to deliver in moments, we did that as well, box tackles, interceptions and then we are just missing that little bit at the end when we did get possession.
"We got into some good positions with the counter attacks. They are a great side but the way we conceded the goal is disappointing.
"I think that is what happens against good sides, they pressure and pressure and pressure you into making mistakes. Sustained pressure does that."