Tennis star yells at his mother – Casper Ruud can't believe Holger Rune's behavior – SHOCKING!

The audience could not believe what they witnessed at the Roland Garros quarter-final between Norwegian tennis star Casper Ruud and the danish talented player Holger Rune.

After Rune screamed at his mother and told her to leave the stand, Ruud took the victory.

What do you think? Is this behavior okay at a sports stadium?