By Ilaria Grasso Macola Greater London Authority’s Conservatives have blamed mayor Sadiq Khan for tomorrow’s Tube strike. “Londoners are facing yet another disruptive strike under Sadiq Khan’s watch, despite his broken promise of zero strikes,” GLA transport spokesperson Nick Rogers said today. “Militant unions are striking because they know Sadiq Khan is too weak to stand up to them and deliver much needed reforms to the bloated pension scheme.” City Hall and Transport for London (TfL) were approached for comment. Despite calling off this week’s rail strikes, the RMT announced yesterday after…