Charlton suffered an embarrassing 1-0 defeat to Skrill Conference South side Ebbsfleet United.
Sky Sports understands Charlton are closing in on the signing of West Ham goalkeeper Stephen Henderson.
Charlton have signed Romanian striker George Tucudean from Standard Liege on a deal until June 2017.
A number of Championship clubs are keeping tabs on Leyton Orient defender Mathieu Baudry, Sky Sports understands.
Former Charlton assistant manager Alex Dyer admits he is keen to get back into coaching and is open to offers.
Charlton have signed former AZ Alkmaar winger Johann Berg Gudmundsson on a two-year deal.
Charlton have signed former Chelsea and Manchester City defender Tal Ben Haim on a one-year deal.
West Ham have completed the signing of midfielder Diego Poyet on a four-year deal.