Chelsea qualified for the semi-finals of the League Cup after defeating host Cardiff City 3/1 on Tuesday.Chelsea's goals were scored by Argentine Alejandro Garnacho, the first in the 57th minute and the second in the second minute of stoppage time in the second half, while Portuguese Pedro Neto scored a goal in the 82nd minute.Cardiff City's goal was scored by David Turnbull in the 75th minute.The quarter-final matches will be completed with two matches on Wednesday, in one of which Manchester City will meet Brentford, while Newcastle will play Fulham in the second match. The competition will conclude next Tuesday with a match between Arsenal and Crystal Palace.