The single leg deadlift is a great exercise to engage all the muscles that support your knee. These muscles include all the stabilisers in your bum, knee, and your calf/ankles all at once. The goal is to get the stationary leg doing all the work. ensure you hinge from the hip whilst keeping the bend in the knee pretty similar throughout. There are three stages to this exercise

Part 1: Stability- just working on going slow and controlled throughout the whole movement

Part 2: Strength- Starting to add a little more load by the way of a knee bend at the end of the single leg deadlift. The exercise will proceed to a quarter lunge position.

Part 3: Power- Start adding fast velocity movements and jumping into the mix. Going through the full range of movement from the last two stages, then exploding up out of the bottom

If you can comfortably do part 1 with minimal pain, then you progress to part 2, and so on to part 3.