PARIS — Roland Garros keeps changing look and shape in the 21st century. It is vaster and more avant-garde, and perhaps it will become less crowded in the passageways as tennis fans shuffle from match to match.

The No. 1 Court, known as the bullring, will soon be demolished. The No. 2 Court, with its enchanting lack of symmetry, is already gone.

Even the main Philippe Chatrier Court, where Rafael Nadal won his 12th French Open singles title on Sunday,