Koscielny and Djourou Recovering and resume full training after suffering injuries.
Koscielny and Djourou had been sidelined with ankle and muscular problems respectively and dropped the recent fixtures against Olympiacos and Tottenham Hotspur.
Following heal at Arsenal, both players are now away on international duty but didn't feature in Friday's Euro 2012 qualifiers. Koscielny was an unused substitute for Laurent Blanc’s France side, while Djourou was suspended for Switzerland’s 2-0 defeat at Wales.
The comeback of Koscielny and Djourou - along with Sebastien Squillaci - will give Arsène Wenger plenty of defensive choices when Arsenal restart their English Premier League campaign versus Sunderland next weekend.