More than 16,000 fans are set to watch Charlton take on Portsmouth at the Valley today.
The Addicks are celebrating their 25th anniversary back in SE7.
And the attendance is expected to be the highest since their return to League One.
MORE: Charlton legend Colin Walsh on buying house near Valley despite exile and Selhurst Park fines
Portsmouth, renowned for having a big following on away days, are taking 3,851 supporters to add to the bumper gate.
Promotion hopefuls Pompey go to the Valley looking to close the gap on sixth-placed Charlton.
Since relegation from the Championship in April 2016, the Addicks’ highest attendance stands at 15,315, which was reached in a 0-0 draw with arch rivals Millwall last season.
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