Looking for a solid tennis-specific workout plan to follow — something on YouTube like Fit4Tennis?

Trying to level up my off-court training and want something tennis-specific, not just generic gym stuff. I play competitively (advanced club/league level) and train on court most days, so I need something that complements that — explosiveness, rotational power, lateral movement, core, and injury prevention without frying my legs before practice.

I've come across Fit4Tennis and like the format, but curious what else is out there. Ideally a structured program I can actually follow week to week, not just one-off videos. YouTube is perfect since it's free and I can do it at home or the gym.

A few things I'm looking for:

• Something that fits around 3–4 on-court days a week
• Focus on power/speed for tennis-specific movement
• Knee-friendly options (manage some knee stuff)
• Bonus if there's a progression rather than random workouts

What are you all following? Open to channels, paid programs, or anything that's actually worked for your game. Thanks!