Real Madrid defender David Alaba will be out of action after picking up an adductor injury in his left leg, the LaLiga club said on Tuesday.
Having recently come back more than a year after sustaining an anterior cruciate ligament (ACL) tear, Madrid did not provide a potential date for the 32-year-old Austria captain's return after the latest setback.
Madrid visit Leganes in the Copa del Rey quarter-finals on Wednesday, followed by a league derby against Atletico Madrid at home on Saturday and a trip to Manchester City in the Champions League knockout phase playoffs on February 11.
"Following tests carried out on our player David Alaba by Real Madrid Medical Services, he has been diagnosed with an adductor injury in his left leg. His progress is being monitored," Madrid said in a statement.
Madrid top the LaLiga standings with 49 points from 22 matches, one point ahead of second-placed Atletico.
An emotional Roger Federer said he was still writing his love letter to the sport that "meant the world" to him on Saturday as the 20-time Grand Slam champion was inducted into the International Tennis Hall of Fame in Newport, Rhode Island.
Tadej Pogacar's bid to complete cycling's Grand Tour hat-trick came to a painful end at the Vuelta a Espana on Saturday when the race leader and five-time Tour de France winner crashed out with blood on his face and an injured shoulder.
Liverpool's Victor Munoz has struck a late equaliser to salvage a 2-2 draw against Nottingham Forest on Saturday, but Andoni Iraola's side were left still searching for their first Premier League win of the season after his first home league game in charge.
Formula One world champion Lando Norris announced a contract extension with McLaren until at least the end of 2030 on Saturday, and said he would be happy to see out his career with a team that felt like home.
Liverpool have finalised an agreement to sign French forward Bradley Barcola from European champions Paris St Germain in a deal worth up to £123 million (AED614 million), with the 23-year-old set to become the latest high-profile addition to Andoni Iraola's squad.