Staff at Manor are told administrators have made progress in talks with possible investors that could lead to the team's survival.
Silverstone decision set to be made in July, Mercedes chief keeps 2018 driver options open, Bernie Ecclestone could step down, plus more.
Lewis Hamilton backs Mercedes' choice of Valtteri Bottas as a replacement for Nico Rosberg, team boss Toto Wolff has said.
George Russell, 18, who finished third in the European Formula 3 championship last year, joins Mercedes' young driver programme.
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