The Bayern superstar arrived by car at the city's Barmherzige Brüder hospital, preceded by German internationals Manuel Neuer, Thomas Müller and Leroy Sané.
The next few days should be decisive for the Polish international who said publicly in May that he wanted to leave Bayern this summer.
On Saturday, the German champion organizes the official presentation of his team at the Allianz Arena.
Bayern Munich's Polish striker Robert Lewandowski in a car after recovery tests at the Barmherzige Brüder hospital in Munich on July 12, 2022 Sven Hoppe dpa/AFP
While Lewandowski submitted to the usual recovery tests on Tuesday, the club had to start training behind closed doors.
According to several media, FC Barcelona raised its offer and offered Bayern 40 million euros plus five million bonuses at the end of June to recruit the 34-year-old striker.
Despite the player's desire to leave one year before the end of his contract, after eight seasons in Bavaria, the Bavarian club has so far shown itself to be inflexible with regard to FC Barcelona, which is increasing the number of requests.
© 2022 AFP