 Ki's third goal for Sunderland came in a 4–1 away win at Fulham from a well-worked set piece by Adam Johnson.On 22 January 2014, Ki reached his second consecutive League Cup final as he helped Sunderland defeat Manchester United 2–1 on penalty kicks after the two-legged semi-final had finished level on aggregate, with Ki and Marcos Alonso scoring Sunderland's penalties.Ki played against Manchester City in the League Cup final on 2 March, but despite leading 1–0 at half-time, they were overpowered by City in the second half, eventually losing 3–1.