The sides meet in Sunday's Carling Cup showdown and Fabregas will lead the Gunners if he can shake off a recurrence of his hamstring problem.
Midfielder Ferguson is fighting fit ahead of his side's first major final at the stadium since 1956 and Larsson is expecting a big performance from the man who won 15 trophies with Rangers.
Prize guy: Ferguson (right) has plenty of trophies from his time north of the border with Rangers
The striker, who came through the youth ranks with the north Londoners, said: 'Fergie has a lot of confidence as a player in the same way as Cesc. I won't compare them directly but Fergie has been a real leader for us.
'He has been the guy who has kept the team ticking over and we were crying out for that type of player when he came to the club a couple of years ago.
'You can see he's a guy who has won a lot in his career. 'He certainly won't be fazed by facing Cesc at Wembley on Sunday.
World class: Arsenal captain Fabregas (left) can run a game on his own from the middle of the pitch
'Fergie came down from Rangers as a big name and a player who had done a lot in the game and he's just been himself since he arrived.
'I don't think he was trying to prove a point, he just kept playing his football and demanding the ball and showed a lot of confidence in himself.
'With Cesc, you could see his quality straight away when he signed as a 16-year-old and he was thrown into the first team quite quickly.
'Everyone knew there was a good chance he'd become a top player. You can never say for definite anyone will make it but he's now up there with the best.'
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Explore more:People: Cesc Fabregas, Barry Ferguson Places: Birmingham