Atletico Madrid coach Diego Simeone has tested positive for COVID-19, his club said in a statement on Saturday, meaning the team could be without their manager when they start the La Liga campaign in two weeks' time.
Atleti's statement said the Argentine was asymptomatic and was currently isolating in his home after undergoing a test on Friday during the team's preseason training camp.
The La Liga season started on Saturday, but Atletico are missing the first two weekends due to participating in last month's Champions League "Final Eight" tournament in Lisbon.
Atleti announced two positive cases on Aug. 9 ahead of their Champions League loss to RB Leipzig.
They play their first game of the campaign at home to Granada on Sept. 27.