The boss has confirmed Albion striker Josh Maja is set to miss around four months after suffering an ankle ligament injury in the clash with Sunderland.
Maja, who was making his first start in Albion colours following another ankle injury against Bristol City, was on the end of a challenge from Dan Ballard and forced off during the first-half at the Stadium of Light.
Carlos Corberán has revealed he is likely to undergo surgery and will not be available until the latter stages of the Sky Bet Championship campaign.
"In the tackle against Sunderland they injured all the ligaments in his ankle, it depends and the doctors still need to ask for a second opinion to see if there is any ligament to fix without surgery." Corberán said.
"Normally he will need surgery and be out of the team for the next four months. It's the worst news we can give."