Benik Afobe’s second-half effort was enough for the home side to claim the three points in a game of little quality in the capital.
The Seasiders were improved from their horror show at Rotherham in midweek but it still wasn’t enough to avoid a second successive defeat.
Here’s how Blackpool’s players rated:
1. Dan Grimshaw - 6/10
Tried his best to claw the ball off the line for the first but couldn’t quite make it. No chance with the second. Photo: CameraSport - David Horton
2. Callum Connolly - 6/10
Okay defensively, but fairly limited going forwards. Allowed Corbeanu to roam in space ahead of him. Photo: CameraSport - David Horton
3. Marvin Ekpiteta - 7/10
Did well aerially and produced some important interceptions. Unfortunate his block dropped to Afobe for the winner. Photo: CameraSport - David Horton
4. Jordan Thorniley - 6/10
Composed on the ball and looked to bring it out. Had a couple of shaky moments defensively though. Photo: CameraSport - Rich Linley
5. James Husband - 7/10
Did well in the build-up to Blackpool’s equaliser and looked solid on his first league start of the season. Photo: CameraSport - Dave Howarth
6. Dom Thompson - 5/10
It was his cross that led to the equaliser, but he otherwise struggled. Seemed to get too involved with the Millwall fans as well. Photo: CameraSport - David Horton