West Bromwich Albion head coach Ryan Mason said their defeat by his old club Hull City was their own fault.
Nat Phillips' handball as he jumped for a corner with his arm high above his head gave the Tigers a penalty deep in stoppage time at the end of the first half, which Olie McBurnie converted.
After failing to take several chances, the Baggies' hopes of getting anything from the game were hindered by Alfie Gilchrist's red card on 75 minutes.
Mason had no complaints about the award of a spot-kick but felt Gilchrist was very unlucky.