The father of Amani Richards appeared to hit out at Mikel Arteta on Instagram amid reports the Gunners' boss is set to be offered a new contract.
Richards, 17, has just completed a move to Leicester having failed to make a senior appearance for the Gunners after signing his first professional contract with the north London club just three months ago.
"It's a surreal feeling, especially because it's my boyhood club and I grew up supporting them," said Richards after agreeing the deal.