Chelsea defender Andreas Christensen declared himself not ready to play on the morning of Saturday's FA Cup final defeat by Liverpool.
Christensen was a surprise omission from Thomas Tuchel's squad, forcing the manager into a rethink before the penalty shootout loss at Wembley.
BBC Sport understands the Denmark international, 26, was due to play.
He is expected to leave Chelsea this summer, having agreed a deal with Barcelona.
Christensen has made 32 appearances in all competitions for the Blues this season, scoring twice.
He joined Chelsea from Danish side Brondby as a 16-year-old in 2012.
Chelsea are currently unable to offer new deals to players because of sanctions placed on owner Roman Abramovich following Russia's invasion of Ukraine.
A group led by LA Dodgers co-owner Todd Boehly has now agreed a deal worth £4.25bn to buy the club.
Christensen's team-mate Antonio Rudiger is also set to leave for Spain this summer, having agreed a deal with Real Madrid.
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