Charlton beat Aston Villa under 21s 2-1 tonight in front of a crowd of 1,283 including Thomas Sandgaard.
Mason Burstow put the Addicks ahead in the first half. Villa equalised, but shortly afterwards Jayden Stockley was brought down and scored from the penalty spot on 43 minutes.
An Albie Morgan free kick rattled the inside of the post on 55 minutes.
Stockley made way for Leko on 65 minutes with Friday in mind.
Harness had a good game in goal.
Johnnie Jackson said: 'Really pleased. The most important thing was that we got through. But some good performances in there and good football at times. Some things to learn from as we do every week. But a good night’s work in all.'
The draw for the third round is on Saturday, still regionalised.