Chelsea beat a resilient Hull City with goals from Eden Hazard and Fernando Torres to go top of the English Premier League before Sunderland climbed off the bottom, with Adam Johnson scoring a hat-trick in their 4-1 win over Fulham.
Chelsea manager Jose Mourinho says he is reluctant to abandon his new-found commitment to attacking football, despite the Portuguese lamenting some poor finishing which saw Chelsea eliminated from the League Cup.
Sunderland's Ki Sung-Yueng scored in the 118th minute to beat Chelsea in a shock 2-1 home win in the League Cup quarter-finals, while Manchester City beat Leicester 3-1 on the road to reach the semi-finals.
Sunderland have signed Korea Republic midfielder Ki Sungyueng on a one-year loan deal from Premier League rivals Swansea City, joining international colleague Ji Dongwon at the Stadium of Light.
Hamburg winger Son Heungmin prodded home an injury-time winner as Korea Republic edged Qatar 2-1 to give their 2014 FIFA World Cup Brazil qualification hopes a major boost.
Swansea stunned European champions Chelsea in their English League Cup semi-final at Stamford Bridge to take a two goal advantage back to Wales for the return leg.