Full-time from Sparrows Lane
This fixture had originally been played back in August when The Lions were leading 1-0, only for the match to be abandoned due to an unseasonal downpour.
However all good things are worth waiting for, and that proved to be the case as Justin Skinner's young Lions grabbed a late leveller from John Marquis to cancel out Joe Pigott's second-half strike.
In what proved to be a typical derby - lots of energy, enthusiasm and commitment - clear chances were at a premium throughout but it was The Lions who looked more of an attacking threat throughout.
In the opening half it was Millwall who went closest with Kris Twardek's low cross just beyond the reach of a posse of team-mates and eventually gathered by Addicks' keeper Dimitar Mitov.
Chris Parr's deep delivery nearly looped into the back of the net and Kyron Farrell's stinging free-kick was pushed over the bar by Mitov as The Lions tested the Addicks' resolve during a keenly contested first 45 minutes.
Charlton's Joe Aribo was booked just before the break for a crunching tackle on Marquis, and received a stern talking to from the referee at the same time.
The home side showed a bit more attacking intent after the break, with Mikhail Kennedy firing across the face of Tom King's goal soon after the restart, however it was The Lions who went close to breaking the deadlock on 67 minutes, but Mahlon Romeo's deflected shot smacked the woodwork.
Seconds later Charlton opened their account thanks to Joe Pigott's smart shot on the turn that went in off the post, but these young Lions refused to give up as they fought gallantly to extend their unbeaten run to nine games.
Moments after Brendon Hanlon had rattled the woodwork, Millwall broke quickly and Marquis was denied by Mitov, who superbly kept out the striker's drive.
However Millwall - and the tireless Marquis - were not to be denied and with just six minutes remaining, got their reward when the forward rifled home off the underside of the bar for a deserved equaliser.
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