Arsenal defender David Luiz hit his teammate midfielder Daniel Ceballos in training, Give me Sport reports citing The Athletic.
A practice match for non-recruited players ended in conflict. After a hard joint, Luis flared up and punched Ceballos in the nose. The midfielder fell on the lawn and started bleeding.
Ceballos immediately got up and tried to continue the showdown with Luis, but teammates and club staff intervened in the scuffle. Both players were sent home.
This season Luis has played 8 matches for Arsenal, in which he scored one goal. Seballos, on loan from Real Madrid, has played 11 games this season.
Arsenal will play Leeds on 22 November in Matchday 9 of the Premier League.