Pep Guardiola was unhappy with the ball used in Manchester City's nervy FA Cup victory over Plymouth Argyle , echoing a complaint made by Mikel Arteta . Arsenal boss Arteta made headlines in January after partly blaming his side's 2-0 defeat at home to Newcastle in the Carabao Cup on the ball. "It's tricky that this ball flies a lot," Arteta claimed. "We discussed that as well, so there are details that we can do better." The Gunners boss added: "It's just different, it's just very different to