Charlton survived an FA Cup scare against League 2 Oxford to salvage a third-round replay.

Boss Chris Powell said it was the worst 45 minutes in his three years in charge as the Addicks trailed 2-0 at half-time on Tuesday night, with the Valley pitch finally fit to stage the tie after two postponements.

But Championship club Charlton avoided an upset thanks to Michael Morrison and a late equaliser from Yann Kemorgant.

Oxford went in front on 13 minutes when Johnny Mullins' deflected shot wrongfooted keeper Ben Hamer.

And the visitors doubled their lead 11 minutes later with Scott Davies finishing James Constable's pass.

Charlton launched theit fightback six minutes into the second half as centre-half Morrison headed home a corner from Jordan Cook.

Kemorgant secured a replay with a superb volley from 10 yards following good work by substitute Danny Green.