Millwall's Under 23s drew 0-0 with Swansea City in the Professional Development League on Tuesday afternoon.
The lofty Lions came close to putting their basement opposition to bed on numerous occasions, but were unable to find a winner and had to share the points.
Abdul Abdulmalik was the first to try his luck at goal, but he drilled his effort wide, before George Alexander though he had scored, only for his attempt to be cleared off the line by Joe Lewis.
The Lions did then have the ball in the net just before half-time, but after Dan Moss turned home Abdulmalik's assist, the assistant referee flagged for offside.
Alexander and Moss had two huge efforts denied in the final 20 minutes as Millwall pressed for the three points, but they were ultimately left frustrated.
Next up for Millwall's Under 23s is a home game with Ipswich Town next Monday.
Swansea City: Searle, Clarke (Ludvigsen 46'), Butler, Thomas, Lewis, Blake, Kenko, Bevan, Akande, Gibbings (Hillier 81'), Campbell. Subs not used: Evans, Williams, Edwards.
Millwall: Gillmore, Moss, Tiensia, Topalloj, A. Mitchell, Muller, O'Brien (Davis 83'), Skeffington, Alexander, Abdulmalik (Allen 76'), Boateng (Bate 88'). Subs not used: Hammond, Miller.