The US government has upped its pressure on Cuba, which is already reeling from multiple crises. The regime in Havana is weak, but analysts don't expect it to collapse.
With Lerone Murphy set to fight Movsar Evloev in London on Saturday, BBC Sport asks fighters why some athletes get overlooked as title contenders.
Follow live text coverage and radio commentary as Newcastle travel to face Barcelona, Liverpool host Galatasaray, Tottenham take on Atletico Madrid and Bayern Munich face Atalanta.
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