Trent Alexander-Arnold's injury-hit start to his Real Madrid career continues with the club confirming he suffered a serious hamstring injury during Wednesday night's 3-0 win away to Athletic Club.

Trent Alexander-Arnold (L) of Real Madrid vies with Florian Lejeune of Rayo Vallecano during the La Liga football match between Real Madrid and Rayo Vallecano in Madrid, Spain, on Nov. 9, 2025. (Photo by Gustavo Valiente/Xinhua)

"Following tests carried out today on our player Trent Alexander-Arnold by the Real Madrid Medical Services, he has been diagnosed with a muscle injury in the rectus femoris of his left quadriceps," informed the Real Madrid website.

Although the club fails to give a recovery date, saying only "his recovery will be monitored," Spanish sports paper Diario AS reports the defender will be out of action for at least two months.

That means he will miss La Liga games against Celta Vigo, Deportivo Alaves, Sevilla, Real Betis, Levante and Villarreal, as well as the Spanish Supercup in Saudi Arabia and Real Madrid's remaining Champions League group matches against Manchester City, Monaco and Benfica.

Alexander-Arnold has struggled with injuries since joining Real Madrid in June, beginning with a muscle problem in July which delayed his pre-season training.

He then suffered a hamstring injury on September 16 which sidelined him for a month, and he only began to start games on a regular basis following the recent international break.