Egyptian international forward Mohamed Zidan missed Borussia Dortmund training Wednesday due to a stomach bug and is doubtful to play in next Saturday’s game against Stuttgart.

Zidan, who has just recovered from a knee injury, is looking to regain his place in Jurgen Klopp’s starting eleven. Midfielders Toni Da Silva and Sven Bender are also doubtful for this tie, while Sebastian Kehl is definitely out.

Dortmund are now toping the Bundesliga table with 43 points, 10 ahead of second-placed Bayer Leverkusen and Mainz.