Matteo Guendouzi's future at Arsenal is in serious doubt.

Mikel Arteta dumped Guendouzi from the squad for Sunday's win against Newcastle as a clear warning to the 20-year-old midfielder.

Gunners boss Arteta was not happy with Guendouzi's attitude in training in the mid-season break in Dubai and the France under-21 star paid a heavy price, says the Mirror.

Arteta is determined to get tough and show who is boss and Guendouzi's exclusion was the talk of the dressing room as the manager sent a strong message.

Arteta stresses that he picks his team based on levels and performances in training and that explains Guendouzi's absence.

He knows that he will have to shake up his squad this summer and sacrifice players before he can buy and Guendouzi would attract interest if Arsenal decide to put him on the market.