Video shows underground retractable pitch being constructed at Real Madrid stadium

Spanish football club Real Madrid has released a video that shows the ongoing remodeling of its Santiago Bernabéu stadium, including the construction of its retractable pitch.
The video shows the exterior of the curved stadium, which is being renovated by designed by Spanish architecture studios L35 and Ribas & Ribas together with German studio GMP Architecten, being fitted with 106-metre-long beams weighing 530 tons.
Inside the 152,000-square-metre stadium, a large pit is being