Overview
- Jamie Gittens struck an 89th-minute volley to restore a cushion after Wolves rallied from 3-0 down at Molineux.
- Liam Delap was sent off within 25 minutes of coming on, booked for a shove on Yerson Mosquera before an elbow on Emmanuel Agbadou.
- Enzo Maresca called the sending-off "stupid" and "embarrassing" after saying he had repeatedly warned Delap to keep calm.
- The red card brings a one-match suspension that rules Delap out of Saturday's Premier League trip to Tottenham.
- Chelsea advance to an away quarter-final at Cardiff in the week commencing December 15 after first-half goals from Andrey Santos, Tyrique George and Estevão.