BBC Sport https://www.bbc.co.uk/sport/football/63299787 https://ichef.bbci.co.uk/live-experience/cps/240/cpsprodpb/E0C8/production/_127244575_gettyimages-1244041783.jpg Newcastle manager Eddie Howe says people should "be careful with comments and opinions" after Jurgen Klopp said they have "no ceiling" when it…