Former Arsenal star Jeremie Aliadiere has told 'little brother' Matteo Guendouzi that he needs to grow up following a high-profile falling out with Mikel Arteta.
The pair grew close during their time at Lorient, when Guendouzi had progressed through the ranks at the French club - and Aliadiere even played a key role in the midfielder's Premier League move after urging him to take it.
But despite their friendship, Aliadiere has delivered a stern warning to the 21-year-old and believes he is at risk of wasting his Arsenal career due to his off-field antics.