Pubalgia, often called a sports hernia, is one of the toughest injuries for players who depend on agility and explosive movement. It affects the connection between the abdominal and adductor muscles, and recovery can vary from week to week. Wingers and attacking players who twist and sprint repeatedly are especially vulnerable.
It is also an injury that cannot be rushed. If a player returns too soon, the pain usually comes back even stronger. Yamal is dealing with the same issue at Barcelona and has been in and out of the squad this season due to the injury. Athletic Club's Nico Williams has managed it recently, and Chelsea’s Cole Palmer has also faced similar problems this season.
Mastantuono's progress has been steady, but Los Blancos are taking a cautious approach and have not yet set a timeline for his return. According to reports, there is quite optimism he could return towards the end of December. Still, the club won't rush him. Alonso wants him fully fit for a demanding January schedule, where Madrid will need depth on the wings.