23 February 7.45pm
Brighton's large and vociferous following were delighted with their team's performance whilst the Addicks faithful were left rueing the night's events.
The visitors adapted much better to the heavy pitch and went ahead after Charlton spurned a glorious opportunity to open the scoring. The ball was switched to Calderon to convert from the edge of the box after 35 minutes.
Bennett sealed the win twelve minutes from time with Akpo Sodje's consolation coming with virtually the last kick.
Burton's early departure will be a worry for Phil Parkinson as well.
With Norwich and Leeds pulling further clear and Swindon, Huddersfield and Millwall closing the gap, it was a disappointing and damaging night for Charlton.