Stephen Clemence’s side showed tremendous resilience in their last match, albeit in unusual circumstances, as they overcame AFC Wimbledon to move back into the promotion playoff spots.
The match was delayed by over 20 minutes due to a floodlight failure at this venue in the second half before Conor Masterson headed home the winner five minutes before the end of regulation time.
The Gills have had a mixed season up to this point, recording 10 wins, nine losses and a draw in the league, though they have lost three of their last five since beating Hereford 2-0 in round one of this competition.
In terms of FA Cup history, only Northampton Town (31) and Hartlepool (30) have been knocked out in the second round more times than the Gills (29), though they have got past this hurdle in three of their last four attempts.
This marks the third meeting between these famous clubs in the FA Cup, and they are tied at one apiece, with the first ending in favour of Charlton way back in 1933-34, while the most recent went the way of Gillingham in the 2003-04 season
Charlton are currently in the exact position that they finished last season in League One, but they do have two games in hand on Lincoln City and Blackpool, who are directly above them in the standings.
The Addicks earned a 2-1 win against Cheltenham Town in midweek, with Alfie May scoring a brace from the penalty spot to extend his side’s recent run of results to seven matches without defeat in all competitions.
During that time, the visitors had a scary moment when they drew 1-1 at home to Cray Valley Paper Mills in the first round of this competition, but they
made no such mistake in the replay when they smashed in six at Badgers Sports Ground, marking the first time in history that they had scored half a dozen in an away FA Cup match.
Charlton are unbeaten in their last four matches against Gillingham and have won three in a row ahead of this one, with the most recent victory coming in a pre-season friendly back in mid-July.