Barcelona defender Andreas Christensen is a doubt for October's Clásico against Real Madrid after being ruled out for several weeks with a thigh injury.
Christensen, 30, was taken off in the second half of Saturday's 3-1 LaLiga victory at Sevilla after picking up the knock in a challenge with Scotland striker Robbie Ure.
The Danish defender underwent tests on Sunday, with Barça confirming he has a left thigh strain and is set for a period on the sidelines.
A source told ESPN he could be out for over four weeks, placing his participation in the Champions League trip to Paris Saint-Germain and the first Clásico of the season in doubt.
Barça travel to Paris on Oct. 20 before hosting Jose Mourinho's Real Madrid at Spotify Camp Nou on Oct. 25.
Prior to that, Christensen will miss Denmark's upcoming UEFA Nations League games against Norway, Portugal and a double-header against Wales.
Following the end of the extended international break, he is then likely to sit out Barça's games against Getafe, Galatasaray and Real Betis.
Christensen signed a new contract with Barça in the summer, tying him to the Spanish champions until at least 2028.
He has started the season alternating with Gerard Martín as Pau Cubarsí's partner in the middle of the back four, starting five of Barça's eight games in all competitions and coming off the bench in two more.
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Frenkie de Jong and Roony Bardghji are Barça's only other current absentees through injury.
De Jong is expected back in training at some point after the international break, but Bardghji could miss the whole campaign with an ACL injury.
Hansi Flick's side have started the season in fine form, winning all eight of their games across all competitions and building up a five-point lead at the top of LaLiga.
