The final sentence highlights his knowledge.
Yeah I know him and have seen him on a load of things over the years. He's a bumbling, old fool who doesn't even know the names of players who play for the club he supports. He's very much from the old school of tabloid journalists. When he used to appear on Sunday Supplement, people just talked over him and he was treated like 'ok John, let the adults talk now'.
He often comes out with a story about 3/4 days after the story has been written by journalists who actually have sources and knowledge, and then he essentially copies and pastes their information into his own article and passes it off as his own work.