Simeone, 50, is isolated at home and has not presented symptoms.
Diego Simeone was criticised by Atletico Madrid fans after their Champions League exit but the club president Enrique Cerezo backed him.
Atletico Madrid lost a golden opportunity to go hard for the Champions League title with a defensive approach against RB Leipzig.
Tyler Adams became the first American to score in the Champions League quarter-finals and help RB Leipzig beat Atletico Madrid 2-1.
RB Leipzig defeated Atletico Madrid 2-1 and will face Paris St Germain in the Champions League semi-final.
Julian Nagelsmann's RB Leipzig take on Diego Simeone's Atletico Madrid in the quarter-finals of the Champions League.
Diego Costa scored the only goal of the match as Atletico Madrid beat Real Betis in La Liga to confirm Champions League qualification for the eighth consecutive.
The World Cup winning forward has not started in three of Barca's six games since returning to action, missing the crucial trips to Sevilla and Celta Vigo which also ended in draws.
Barcelona drew 2-2 with Atletico Madrid, handing the La Liga advantage to Real Madrid despite Lionel Messi scoring 700th career goal.
La Liga: Barcelona hosts relegation-threatened Leganes in an empty Camp Nou on Tuesday, while Real Madrid welcomes seventh-place Valencia on Thursday.
Diego Simeone has earned a reputation as a fine motivator and tactician at Atletico Madrid and Juan Sebastian Veron feels he is perfectly suited for Argentina.
Juergen Klopp called Atletico Madrid a team, which defends 'with two rows of four'.
UEFA Champions League 2019-20: Atletico Madrid knocked out holders Liverpool 4-2 on aggregate in the Round of 16.
Karim Benzema scored the only goal of the match as Real Madrid edged past Atletico Madrid in the Madrid derby.
Real Madrid take on Atletico Madrid in the Madrid derby at the Santiago Bernabeu in La Liga.
Zinedine Zidane has now won all nine of the finals he has managed as Real Madrid defeated Atletico Madrid in the penalty shoot-out to win their 11th Spanish Super Cup.
Atletico Madrid clash with rivals Real Madrid in the Spanish Super Cup final, with either team not playing the tournament at all had not the rules been changed.
Atletico Madrid defeated Barcelona 3-2 in the semi-final of the Spanish Super Cup, leaving Lionel Messi to rue what could have been.
UEFA Champions League 2019-20: Joao Felix's penalty and Felipe Monteiro's acrobatic volley helped Atletico Madrid beat Lokomotiv Moscow 2-0.
La Liga 2019-20: Atletico Madrid host Athletic Bilbao at the Wanda Metropolitano in a late kick-off on Saturday.