 Complete the following phrase:  The 201819 EFL Cup was the 59th season of the EFL Cup. Also known as the Carabao Cup for sponsorship reasons, the competition was open to all 92 clubs participating in the Premier League and the English Football League. The first round was played on 14 August 2018, ten days after the start of the Football League season. Manchester City successfully defended their title, their first step in becoming the first English team to complete a domestic treble for the football season, as they later won the 201819 Premier League and the 201819 FA Cup. The 