Alexander Hleb feels he learnt more from Arsenal manager Arsene Wenger than he did from ex-Barcelona boss Pep Guardiola, whom the Belarusian claims is not the best coach in the world.
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Hleb, 31, spent three years at Arsenal under Wenger after joining the club from Stuttgart in 2005, but he failed to win any silverware during his time at the club.
The playmaker left the Gunners in 2008 to sign for Barcelona, where he enjoyed a treble-winning debut season as Guardiola's side clinched the Liga, Copa del Rey and Champions League trophies.
Hleb thereafter struggled to make an impact at the Camp Nou and subsequently was loaned out, before being released from his contract at the end of 2011.
Speaking to Esports en Xarxa, Hleb, who now plays for BATE Borisov, reflected on the managers he has worked with: "I learnt more from Wenger than Guardiola, but Pep is a good coach.
"Guardiola is not the best coach in the world, because he coached the best team in the world, with the best players, and that's why he won.
"It's hard not to win with a team like that and [Tito] Vilanova will have the greatest success. The best coaches in the world are [Jose] Mourinho, [Sir Alex] Ferguson and [Arsene] Wenger."