Nuri Sahin is available for Borussia Dortmund in time to face Arsenal.
The midfielder has not played a single game this season after suffering a knee injury ahead of the campaign.
He featured in an friendly this week, report German channel Sport1, and is available for selection for the first team.
For Dortmund's struggling side, sitting 15th of 18 teams in the Bundesliga, it's a big boost for manager Jurgen Klopp.
He returns in time for the club's next Bundesliga fixture against Paderborn and crucially, the Champions League tie away to Arsenal on November 26.
Dortmund head into the game with a five point lead over Arsenal, and a draw will confirm their status as group winners.
Sahin played in England for a short spell with Liverpool in 2012/13, before falling out with Brendan Rodgers and cutting his loan deal short.