While most were preparing for see 2018 in, Real boss Zidane had other ideas before he let his players off.
The Real Madrid stars took part in a routine training session – at least at first.
But Zidane then ordered his players to take off their boots and put on trainers, according to Spanish newspaper Marca.
He then told them to run up and down the stairs of the Bernabeu under the watchful eye of fitness coach Antonio Pintus.
Pintus watched carefully as the side completed the strange workout which was completely new to much of the team.
vCard.red is a free platform for creating a mobile-friendly digital business cards. You can easily create a vCard and generate a QR code for it, allowing others to scan and save your contact details instantly.
The platform allows you to display contact information, social media links, services, and products all in one shareable link. Optional features include appointment scheduling, WhatsApp-based storefronts, media galleries, and custom design options.
Players had to sprint from the front row to the back of the lower tier, which is 40 metres away from the turf of the playing surface.
Marca say players were told they must not skip a step with Pintus ensuring they did just that.
Real are 14 points behind Barcelona in the La Liga table, although they do have a game in hand.