Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
All eight Premier League clubs competed in this round. The first legs were played on 17 September and 1 October 2014, while the second legs were played on 20 October and 15 November 2014.
The four winners from the quarterfinals entered this round. The first legs were played on 18 and 19 March 2015, with the second legs to be competed on 15 and 16 April 2015.