The striker was sold by the Gunners but is now flourishing with Bournemouth.
Afobe was one of many youth products to have come out of the Gunners' setup over the years, but he never managed to make his breakthrough into the first-team.
He moved to Wolverhampton Wanderers last January and impressed, before sealing a big money switch to the Cherries during this season’s winter window.
While Arsene Wenger’s side arguably did not see his potential, Afobe has revealed that one who did was fellow forward van Persie.
“He is a great guy and I have a huge amount of respect for him,” he told the Bournemouth Echo.
“I remember him saying “live your life right and your time will come. Keep working hard, you’re a good player, you’re strong and quick and you can score goals. Just keep wanting to learn and improve and have confidence.
“When you are 18 or 19 and you hear that from the best striker in the Premier League at the time, it is great.”
Afobe will now be keen to show Arsenal that they were wrong to let him go without giving him his first-team chance.
He already has three goals in his first six appearances, a return that makes him the club’s joint second highest goalscorer already.
If he can continue that kind of form for the rest of the campaign it could prove crucial to Bournemouth's hopes of avoiding relegation this season.
And if they do, the Gunners will surely feel they should have held onto him after all.