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).
2017 UEFA Super Cup The 2017 UEFA Super Cup was the 42nd edition of the UEFA Super Cup, an annual football match organised by UEFA and contested by the reigning champions of the two main European club competitions, the UEFA Champions League and the UEFA Europa League. The match featured Real Madrid, the title holders and winners of the 2016–17 UEFA Champions League, and Manchester United, the winners of the 2016–17 UEFA Europa League. The match was played at the Philip II Arena in Skopje, Macedonia, on 8 August 2017, and was the first UEFA final staged in the country.