PEP GUARDIOLA offered some words of comfort for Fred after the Manchester United midfielder appeared to be racially abused in Saturday’s Manchester derby at the Etihad. A 41-year-old City fan – who denies he was being racist – was arrested yesterday and the FA are likely to launch an investigation today. City boss Guardiola tracked down the United midfielder by the tunnel after the game. Concerned Pep spoke to the shaken Brazilian, who he was previously keen to sign for the Etihad club. Ex-Shakhtar Donetsk man Fred, who joined the Red Devils for £52million in summer 2018, did not see the alleged abuse at the time. But he was dismayed when shown the footage in the dressing room.Chief executive Ferran Soriano and other senior officials from City spoke to United director David Gill in the tunnel area after United’s 2-1 victory. NO STONE LEFT UNTURNED Soriano is believed to have condemned abuse — making clear no stone would be left unturned in dealing with the issue. City could also be in hot water over objects thrown from the stands. Fred was hit by what was believed to be a lighter — amid reports of other things being hurled.The champions quickly…