All is not well at Real Madrid.The club have struggled massively since losing Zinedine Zidane and Cristiano Ronaldo in the summer.It was hoped that Julen Lopetegui would be able to pick up from where Zidane left off but that has not been the case.They were shocked 2-1 at home to Levante on Saturday, meaning Real Madrid are seventh in the table having won just four of their opening nine games.Lopetegui's position as manager is now believed to be under threat after just a few months at the helm.Madrid are struggling massively on the pitch and now worrying footage has emerged from their training session on Monday.Lopetegui's side are currently preparing for their Champions League tie against Viktoria Plzen tomorrow but tensions boiled over as Sergio Ramos lashed out at youth team player, Sergio Reguilon.Watch the incident below:That does not look good at all.Ramos is currently the club captain and they need him to keep his cool in what is a challenging time for the club.But the Spanish defender did the opposite and many Madridistas have voiced their displeasure at his treatment of the 21-year-old.Ramos has since taken to Twitter to speak about the incident, where he said there was 'no excuse' to react in the manner that he did."Although it does not seem, are quite common situations, but no excuse, my reaction should not be that," he wrote."We always go to full, don't we, Regui? At the end of the team victory together @sergio_regui! 😜🤥😜🤥 shelve 📂 and for tomorrow's game. #HalaMadrid"

Fair play to Ramos. He recognised his actions were wrong and sent a classy tweet to the youngster.

And it seems Reguilon has accepted the 32-year-old's apology.

"Always with my team and with my captain, for victory tomorrow! 💪🏻" He replied.