It didn't take Thompson very long into the summer and fall of 2013 – when Scout.com first viewed him - to prove how talented he is. Thompson has an ideal frame for a young shooting guard and is very skilled given his age.
He's a strong shooter who can knock down jumpers off the catch or use his quickly developing ball skills to create his own shot. Thompson plays hard on defense and gets a lot of steals due to his natural defensive instincts and quick reactions.
Given Thompson's age, the consistent and significant progress of older brother Stephen Thompson, Jr. and the bloodlines of his father being a former college player at Syracuse before playing in the NBA – he's now the head coach of Cal State Los Angeles – there's every reason to think that Ethan will continue to make strides as a player over the coming years.
There haven't been too many freshmen in Southern California that have made the impact that Ethan has right away, but the way the 2017 prospect has performed in his first year of high school ball doesn't come as a huge surprise to his father.
"I don't want to say I'm surprised because being around him for years, I knew he had the capability to do the things he's doing, but actually going out there and doing them is another thing," said Thompson, Sr. "I'm not surprised and knew he had it in him and happy he's had the opportunity to showcase it.
"He's a very young player – he's only 14 years old and won't be 15 until May – but even as a young player, I think being able to be a freshman starter on a very good team and make the contributions he's made, being on a team that split league champions, contributing on a team like that, I'm really happy with what he's done as a freshman."
One school has already offered Thompson a scholarship, while several others are recruiting him.
"He already has an offer from LMU, but he's hearing from Clemson, Oregon State, Washington State, Notre Dame, Harvard, Tulsa, Arizona, Northern Arizona, Southern Utah and Pepperdine," said Thompson, Sr.
It's as early as possible into Thompson's recruiting process, but he did grow up a fan of a local program.
"Growing up, Stephen always had a UCLA shirt on and Ethan always had a USC shirt on, but I think that was just them as little kids being fans of these programs growing up," said Thompson, Sr. "He hasn't stated that he wants to play for a certain team when he goes to college."