Arsenal pair Dani Ceballos and Eddie Nketiah were involved in a heated bust-up before their Premier League opener against Fulham.
The pair were both left on the bench by manager Mikel Arteta as they travelled to Craven Cottage for the first game of the season.
And their frustrations at being left out of the starting line-up seemed to bubble over as they clashed in a pre-game warm-up on the pitch.
With the starting players in the dressing room, the substitutes were seen in a circle with one man in the middle.
As the ball was played to Nketiah, Ceballos dived in with an aggressive challenge, prompting a word from Nketiah before the Spaniard shoved the youngster.