The Spaniard has been criticised over his conduct by opponents in the Gunners' two most recent games against Everton and Huddersfield.
In the wrong: Cesc Fabregas (right) was furious that Everton's goal in Arsenal 2-1 win was allowed to stand
But after a radio show brought the 23-year-old's captaincy into question, Wilshere backed Fabregas' role at the club.
He said on Twitter: 'Listening to talkSPORT and they questioning Cesc's captaincy, he is a brilliant leader and protects his team mates always,very passionate guy.'
Followed later by: 'Adrian and Darren, love the show but just to let you know Cesc is a great captain and helps me a lot. A great role model for all young players!'
Saviour: Fabregas came off the bench to score the winning goal from the penalty spot against Huddersfield
Toffees boss David Moyes said Fabregas deserved to be sent off after a rant at the referee and the fourth official in Arsenal's 2-1 win on Tuesday.
While Terriers defender Anthony Pilikington accused the midfielder of a four-letter rant at two of his team mates who wanted his shirt as a souvenir on Sunday.
Despite Moyes' accusations, the FA will take no further action after the referee for the Premier League clash Lee Mason did not include the supposed incident at half-time in his match report.
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Source: Daily Mail
Source: Daily Mail