Richard Keys claims he knows the real reason Mikel Arteta didn’t over-celebrate Arsenal’s win at West Ham and also has his say on Declan Rice. Much was made about both Declan Rice’s return and over-celebrating ahead of West Ham’s clash with Arsenal. There was certainly nothing for West Ham to celebrate. But there was plenty for Arsenal as Rice rounded off a humiliating 6-0 win. Arsenal and Mikel Arteta had been criticised for over-celebrating in the lead up to the Hammers trip. Keys claims he knows real reason Arteta didn’t over-celebrateBut both the Gunners boss and Rice were very reserved as…