Alfa Romeo driver Kimi Raikkonen has tested positive for COVID-19 and will miss the Dutch Grand Prix.
Reserve driver Robert Kubica will take his place this weekend, the team said on Saturday.
Kubica, who has not raced in Formula One since the Abu Dhabi Grand Prix in 2019 with Williams, joined the Swiss-based Alfa Romeo team as a reserve driver ahead of the 2020 season.
"Kimi is displaying no symptoms and is in good spirits. He has immediately entered isolation in his hotel. The team wishes Kimi a speedy recovery," Alfa Romeo said in a statement.
Raikkonen's participation at next weekend's Italian Grand Prix is also in doubt as he cannot return to the paddock until he receives a negative test.
Raikkonen announced this week that he was retiring at the end of the season, 20 years after his Formula One debut. At 41, the Finnish "Iceman" is the oldest driver on the starting grid and holds the all-time record for most race starts, at 341.
Kubica, who had stints with BMW Sauber and Renault from 2006 to 2010, returned to the Formula One grid in 2019 after a near-fatal rally crash in 2011.
Abhishek Sharma's 19-ball fifty went in vain as world champions India were surprisingly beaten by Ireland for the first time in international cricket, slumping to a 34-run defeat in the first Twenty20 in Belfast on Friday.
England roared back into contention on the second day of the third and deciding test against New Zealand with Ben Duckett's rapid century helping his side to 223-2 after three wickets for returning captain Ben Stokes helped to dismiss the visitors for 438 at a sizzling Trent Bridge.
American great Serena Williams will face Australian 20-year-old Maya Joint in the first round of her eagerly awaited return to Wimbledon, a potentially tricky tie for the seven-time champion playing at the tournament for the first time since 2022.
Australia booked their spot in the knockout rounds of the World Cup on Thursday after a cagey draw against Paraguay, who are set to qualify as a third-placed finisher, while Turkey beat USA 3-2, scoring the winner with virtually the last kick of the match.