Watch PDC's post-match interview.
Following Sunderland's defeat in the Midlands, head coach Paolo Di Canio was frank in his post match assessment.
"We dominated the game for 20 minutes but then West Brom scored from their first real attack and from there we lost our belief," Di Canio told SAFSee.
"The Premier League is a very tough league and very unforgiving, we were punished today and it is tough to take."
He added: "When we did create a chance to get back into the game but luck was against us. Steven Fletcher got injured and we could now be without him for a few weeks."