Arsene Wenger will continue to use David Ospina as Arsenal's cup goalkeeper when they face Manchester City at Wembley on Sunday.
The Colombian will keep his place in between the sticks despite the importance of the match against the Premier League leaders. Ospina has started all but one of this season's League Cup games so has merited his selection ahead of No.1 Petr Cech, who is primarily used in the league.
Cech never expected to play against City, suggesting earlier in the week that he anticipated missing out on the final.
Wenger always backs his second choice goalkeeper in cup competitions, and confirmed Ospina would be in net for both the Europa League clash with Ostersund on Thursday and the game against Manchester City.
"It's always a difficult decision but I think they are clear about that," he said about his goalkeeping selection.
"Since the start of the season, it's clear. He (Ospina) played in the whole competition. I have two world-class goalkeepers and I decided from the start to have clarity in the games they play. I maintain that."
While Ospina's place at Wembley is confirmed, Wenger will still be sweating over the fitness of Aaron Ramsey.
The midfielder trained with his team-mates on Wednesday morning but a groin injury means he will not feature against Ostersund and is still a doubt for the meeting with Manchester City.
"He's not in the squad tomorrow," Wenger confirmed when asked about Ramsey's availability.
"He had a good training session but he's a bit short for tomorrow. We'll see how his evolution goes now from today until Sunday.
"I don't rule him out yet, it depends on how well he can improve with the intensity of training until Sunday."
Henrikh Mkhitaryan will start on Thursday as he is ineligible for the cup final, having played for Manchester United earlier in the competition.
Surprisingly, Mesut Ozil played the whole 90 minutes of the opening leg against Ostersund in sub-zero conditions.
He will be absent this time around due to illness, although Wenger believes he will be fine to feature in the final.
"Mesut was sick," he added.
"Today was his first training session. He was in bed on Monday and Tuesday with sickness. I would certainly have played him but he was sick.
"He will have to work hard and he will not be involved tomorrow. He should be OK for Sunday."