Real Madrid coach Carlo Ancelotti has suffered a double injury setback as his side starts to prepare for Saturday's Copa del Rey final against FC Barcelona.
Four games in La Liga on Wednesday have a lot to say about the title race, next season's Champions League berths, and the struggle to avoid relegation.
FC Barcelona striker Robert Lewandowski has sustained an injury to the semitendinosus muscle in his left thigh.
Barca will be at home to Celta Vigo on Saturday night after qualifying for the semifinal of the Champions League despite a 3-1 defeat to Borussia Dortmund on Tuesday night.
FC Barcelona coach Hansi Flick is likely to have only two central defenders available for his side's rescheduled La Liga game at home to Osasuna on Thursday night.
FC Barcelona forward Ansu Fati's injury nightmares continue with the confirmation that he has suffered from a foot injury that will keep him out of his side's pre-season tour of North America.
Laporta's biggest complaint was over Lamine Yamal's 28th minute flick which was scrambled away by Madrid keeper Andriy Lunin.
FC Barcelona won a thrilling Champions League tie 3-1 at home to Napoli to assure their place in the quarterfinals of the Champions League.
Raphinha opened the scoring in the 20th minute and could have had two more before halftime as Barca dominated their rivals well below usual level.
Both Real Madrid and FC Barcelona look set to lose key defenders for at least a month, with right back Dani Carvajal sidelined for Real Madrid and central defender Inigo Martinez out for Barca.
