Walcott described his teammate's best attributes and explained he feels that too much pressure is often placed upon players of that age to succeed.
He told Goal: "He's 19 and coming to a whole new country, new culture, language, way of playing. It's hard, you know.
"It feels like we put a lot of pressure on players who don't ask for it. They just want to enjoy their football, but it always takes time to settle in a new environment, especially when you're moving countries.
"He's done very well in Italy, and now he's adapting to English life and English football well.
"He's a workaholic. He does some mad things with the ball, and he's probably the strongest guy I've ever come across as well. I mean, Yerry [Mina] is a big unit but Moise can more than hold his own in that battle!
"I was so pleased when he got his first goal, because you could see the emotion in his face. He's worked so hard, firstly to get his move and then since. I've been there myself and I know how it feels. I know he has the hunger."