In June 2001, Brazilian tennis player Gustavo "Guga" Kuerten won his third French Open at Roland Garros. After match point, he knelt on the clay and drew a large heart with his racket. Twenty-five years later, I tried to capture the scene in LEGO. The Heart in the Clay is a 6,782-piece tennis stadium diorama frozen at that exact moment. The arena is an original design, not a literal recreation of any real court, built to frame the court and the heart as the focal point. Corretja is still on...