What cup that Cambridge United will participate in is called the Carabao Cup for sponsorship reasons?
EFL Cup The EFL Cup (referred to historically, and colloquially, as simply the League Cup), currently known as the Carabao Cup for sponsorship reasons, is an annual knockout football competition in men's domestic English football. Organised by the English Football League (EFL), it is open to any club within the top four levels of the English football league system – 92 clubs in total – comprising the top level Premier League, and the three divisions of the English Football League's own league competition (Championship, League One and League Two).
Caribbean Cup The Caribbean Cup is the championship tournament for national association football teams that are members of the Caribbean Football Union. The first competition was contested in 1989 in Barbados. The Caribbean Cup serves as a qualification tournament among CFU members for the CONCACAF Gold Cup. The Caribbean Cup replaced the CFU Championship competition which was active between 1978 and 1988.