Mikel Arteta has never met Leeds boss Marcelo Bielsa - either socially or in the dug-out.Yet, while tomorrow’s trip to Elland Road changes all that, the Arsenal manager claims he already knows loads about the Argentinian - both as a character and master tactician.Bielsa is a guru for all the game’s great modern-day coaches, including Manchester City supremo Pep Guardiola.Arteta, having been Guardiola’s assistant at City for three-and-a-half years, holds the South American in the same high regard.And the Gunners chief admits he is particularly well versed in Bielsa's unique, much-lauded attributes - thanks to a close pal, whose identity remains classified information.Arteta said: ”I haven’t spent any time with Bielsa but I know many players.
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