Newspaper in Kenya claims George Mamangoi will participate in the Monaco 1500m, thus making it effectively a rematch between silver medalist Jakob and gold medalist George of the recent Tampere World U20 1500m final. He is not on the official entry list of the DL event yet, however Tefera does not anymore appear on that list.
Another detail is that they report that the Manangois elder sister died last month, and from other sources we have the information that George suffered Malaria last month.