Millwall and Blackpool cancelled each other out in a goalless draw.
The hosts started well and Derek McInnes fired over from 25 yards before Kevin Braniff headed Neal Ardley's inswinging corner against the crossbar.
Blackpool fought back and Andy Morrell hit a left-foot drive over the bar, while Scott Vernon bundled wide after Chris Day saved Kiegan Parker's shot.
Blackpool piled on the pressure as they went all-out for a winner but Millwall held on for a valuable point.
Millwall: Day, Senda, Whitbread, Robinson, Shaw, Elliott (Dunne 86), McInnes, Williams, Ardley (Trotter 73), Morais (Hubertz 45), Braniff.
Subs Not Used: Edwards, Craig.
Blackpool: Evans, Barker, Jackson (Joseph 41), Evatt, Tierney, Bean, Southern, Gillett, Vernon (Burgess 70), Parker, Morrell.
Subs Not Used: Edge, Fox, Prendergast.
Booked: Evatt, Bean.
Ref: K Wright (Cambridgeshire).