Christine Ohuruogu won the 400m at the London Grand Prix as rain poured down at Crystal Palace.
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Arthur Simpson-Kent, 48, admitted killing Ms Blake and their sons according to his lawyer.
Tsvetomir Georgiev, 25, targeted women travelling late at night on the London Underground.
Arsenal manager Arsene Wenger has urged supporters to back the team after claiming they lost the title due to a "very difficult climate".