 We present Trainee, a high-fidelity haptic device designed for training in injury evaluation. With our device, we aim to assist novice practitioners in becoming proficient in the Valgo stress test. Our device emulates knee-joint biomechanics with a commercial plastic model and reproduces skin look and feel with two silicon-based materials. We integrated multiple force-resistant sensors to capture pressure applied on the skin, which a simple user interface visually represents using fillable bars. Finally, our device reproduces four injury conditions of the medial collateral ligament, using steel wires and a custom-made tensioning mechanism. We envision our system improving physiotherapy education, enabling educators to conduct courses and hands-on labs in educational institutions. Thank you.