The Latest: Zubkov to step down from Russian bobsled

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              FILE - In this Tuesday, May 24, 2016 file photo, Grigory Dudko opens a door for journalists during a visit to Russia's national drug-testing laboratory in Moscow, Russia. Vladimir Putin's spokesman says Russia is "optimistic" ahead of a World Anti-Doping Agency ruling Tuesday Jan. 22, 2019, on whether the country's authorities met demands to turn over lab data. The WADA executive committee reinstated Russia's anti-doping agency in September 2018 on condition the country turned over data from a Moscow laboratory. (AP Photo/Alexander Zemlianichenko, File)
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MOSCOW (AP) — The Latest on Russian doping scandal (all times local):