Andreas Christensen is expected to miss the final Clasico of the season after Barcelona confirmed he sustained a calf injury on international duty.

The centre-back started Denmark's opening Euro 2024 qualifier against Finland on Thursday but lasted only 18 minutes before being forced off.

Barcelona revealed it to be a problem with his left calf on Saturday following widespread media reports of him facing a period on the sidelines.

While the club have not given a timeframe for Christensen's return, simply saying he is "unavailable for selection and his recovery will determine his return", they are reportedly expecting him to be out for up to a month.

As such, he could miss as many as six games – among those, crucially, is the Copa del Rey semi-final second leg against Real Madrid on April 5, when Barca host Los Blancos having beaten them 1-0 at the Santiago Bernabeu in the first leg.

The other five matches he could be a doubt for are in LaLiga, though Barca will likely feel their 12-point lead at the summit is sufficient to cope without him for the time being.

Christensen has become a prominent figure at Camp Nou in recent times, however.

After joining on a free transfer from Chelsea in pre-season, the 26-year-old was initially a bit-part figure, making only five LaLiga appearances before the World Cup partly due to injury.

But he missed just one of their 10 games across all competitions prior to this international window – that being the first leg against Madrid.