Cesc has revealed the motivational tactic helping to inspire his former club's title challenge.
Fabregas said: "I was lucky enough to be at the training ground recently.
"And it felt like I'd never been there before because everything had changed so much.
"The manager of the training ground told me that it's 95 per cent Mikel [Arteta] who has changed the whole thing."
"The perception of the club in the last few years, a lot of positive messages around the training ground, much bigger facilities, better equipment, pitches, everything you name it.
"So every day the players they go there, they see the Premier League but only being the symbol, so it's like a message or inspiration every day to go there and prove that you really want to put the Premier League [trophy] in there.
"So I think he's changed the mentality of the club since Arsene [Wenger] left and it's fantastic what he's done."