Brighton boss Chris Hughton believes their double header on Tuesday was an excellent exercise.
Tomer Hemed drew Albion level against Pompey in the morning, before a goal from Pascal Gross was cancelled out at The Valley - and Hughton felt it was another good opportunity to prepare for the upcoming season.
He said, “It was a very good workout against a good side [Charlton]. We've had two games today and this was our opportunity to give a second group of players more minutes on the pitch.
“What we got was what we expected - tough games against sides that are one week closer to the start of their division. Hopefully it was a worthwhile exercise for both teams."
The Albion boss also commented on the current condition of his first-team squad, after the Seagulls brought in seven new faces over the summer months.
“I'm happy with the squad and if we finish with the squad that we've got now, then it's a squad that I'm happy to go into the season with.
“We want to try and get as good a squad as we can. We know the numbers that we want and it's generally about having two players in each position.
“We'll continue to try and develop the squad as much as we can in the time period we have."
Summer signings David Button, Leon Balogun and Bernardo all featured at The Valley.