Sheffield United 0 Charlton 1: Latest from Bramall Lane
But it was the visitors who took the lead in the third minute, Ricky Holmes firing home from a free-kick.
It was reward for a positive start from Charlton, kicking towards the Kop.
Tony Watt’s overhead kick smashed against the crossbar and then Blades keeper Simon Moore had to be alert as Ezri Konsa barged through before shooting goalwards.
United were struggling to get out of their own half in the first 10 minutes.
Blades: Moore, Fleck, O’Connell, Basham, Sharp, Coutts, Hanson, Freeman, Ebaks-Landell, Duffy, Lafferty. Subs: Long, Lavery, Done, Wright, O’Shea, Chapman, Carruthers.