Christian Pulisic is set to miss a chunk of action after tearing a muscle in his thigh, according to the Daily Mail.
The young American was injured during Borussia Dortmund’s humbling 3-0 defeat at Tottenham in the Champions League last Wednesday.
Pulisic missed his side’s 0-0 draw away to Nurnberg on Monday night – a result that left Lucien Favre’s team just three points clear of Bayern Munich at the top of the Bundesliga.
He is also expected to be unavailable for Dortmund’s visit of Bayer Leverkusen on Sunday.
It is another frustrating moment in a disappointing season for Pulisic, who will join Chelsea for £57.6million at the end of the campaign.
The 20-year-old has found first-team football harder to come by in 2018/19, not helped by the emergence of English teenager Jadon Sancho.
Whether Pulisic is fit for the return leg at home to Spurs on March 5th remains to be seen.