The 18-year-old has been sidelined since January 2018 due to a serious ankle issue, with his recovery programme ongoing at Melwood.
Klopp confirmed recently that Brewster is progressing well and the manager is targeting pre-season as the point at which he can be fully integrated in training.
And the forward has detailed how the boss, and his teammates, are helping him through a testing period in his budding career.
“It has been a frustrating time, I’ve been out for a long time and I don’t wish that on anyone,” Brewster told Press Association Sport.