Spain's Rafael Nadal waves after losing to Serbia's Novak Djokovic during their semifinal match of the French Open tennis tournament at the Roland Garros stadium Friday, June 11, 2021 in Paris. Djokovic won 3-6, 6-3, 7-6 (4), 6-2. (AP Photo/Christophe Ena)

Spain's Rafael Nadal waves to the crowd after losing to Serbia's Novak Djokovic in their semifinal match of the French Open tennis tournament at the Roland Garros stadium Friday, June 11, 2021 in Paris. Djokovic won 3-6, 6-3, 7-6 (4), 6-2. (AP Photo/Thibault Camus)

Spain's Rafael Nadal reacts. As he plays Serbia's Novak Djokovic rduring their semifinal match of the French Open tennis tournament at the Roland Garros stadium Friday, June 11, 2021 in Paris. (AP Photo/Michel Euler)

Spain's Rafael Nadal waves after losing to Serbia's Novak Djokovic in their semifinal match of the French Open tennis tournament at the Roland Garros stadium Friday, June 11, 2021 in Paris. Novak Djokovic won 3-6, 6-3, 7-6 (4), 6-2. (AP Photo/Michel Euler)