Barcelona midfielder Dani Olmo has been ruled out of Tuesday's Champions League trip to Benfica with a calf injury, the LaLiga club said on Sunday.
Olmo has scored six goals and registered three assists in 18 appearances since joining Barça from RB Leipzig.
Barcelona were held by Getafe on Saturday in LaLiga but are well-placed in the Champions League table in second, having won five of their six games.
"Dani Olmo has a right soleus [lower calf muscle] strain. He is out for the next match and his return will be determined by his recovery," the club said.
The injury comes after Olmo and fellow summer signing Pau Víctor were granted temporary playing registrations by the country's top sports court.
Olmo and Victor were originally only registered for the first half of the season and Barcelona were then blocked by LaLiga and the Spanish Football Federation from registering both players for the second half of the campaign for failing to meet Financial Fair Play rules before the Dec. 31 deadline.
However, the club turned to the Spanish Government, which intervened as the National Sports Council reversed the decision and allowed the club to provisionally register the players until the final resolution of Barcelona's appeal.
