Rival watch: Atletico Madrid midfield ace a doubt for derby against Real Madrid

Real Madrid prepare to face Rayo Vallecano in La Liga, while Atletico Madrid gear up for a crucial derby against Real Madrid at the Riyadh Air Metropolitano. The latter is facing a significant injury concern with midfielder Pablo Barrios, a key figure in Diego Simeone's lineup, potentially sidelined for their September 20 clash.

Barrios suffered a low-grade myofascial injury to his right leg in the Champions League match against Liverpool, which has now left his availability for the upcoming derby in serious question. It is unclear how his recovery will progress, but Atletico Madrid has not provided a specific timeframe for his return. The absence of Barrios, who has been a consistent starter for Atleti, would undoubtedly affect Simeone's tactics and the team's performance in the highly anticipated match against his former club.

Though the coach has options like Koke, Morten Hjulmand, Johnny Cardoso, Rodrigo Mendoza, and Obed Vargas, replacing Barrios in such an important fixture remains a considerable challenge.