Borussia Dortmund midfielder Giovanni Reyna has been ruled out for the rest of the season after sustaining a muscle and tendon injury, the Bundesliga club said on Sunday.

The American international played only two minutes against Stuttgart in the league on Friday before being substituted as Dortmund went on to win 2-0 thanks to a double from his replacement Julian Brandt.

Dortmund centre-back Mats Hummels will also miss "several weeks" after sustaining a muscle injury in the same match.

ALSO READ | Brandt nets 2 as substitute, Dortmund beats Stuttgart 2-0

Reyna, 19, has endured an injury-hit campaign for the Ruhr valley club, having featured in only 13 games across all competitions.

Second-placed Dortmund hosts Wolfsburg in the Bundesliga on Saturday before a trip to leader Bayern Munich, which it trails by nine points.