Germany winger Marco Reus is an injury doubt for Borussia Dortmund's Champions League clash at Arsenal on Wednesday after being carried off in Saturday's Bundesliga match at Paderborn.

The 25-year-old, who has only just returned from injury, twisted his right ankle after a heavy tackle and was stretchered off after 66 minutes having given his side a 2-1 lead at Paderborn.

Dortmund are top of Group D, five points clear of second-placed Arsenal, and have already booked their place in the Champions League's last 16 with two games to spare before the Emirates Stadium clash.