Protect skill quality
Technical practice is central to MMA. Schedule the hardest lifting so it does not repeatedly compromise important sparring or grappling sessions.
When two sessions share a day, consider the priority of the training phase and allow as much recovery between them as the schedule permits.
Use the minimum effective work
MMA athletes already carry a large training load. A few well selected strength movements performed with intent can be more useful than high volume bodybuilding work added without a purpose.
Add training only when the athlete can recover from it and it addresses a real need.
Adjust when fatigue rises
Performance, sleep, soreness and motivation can all help reveal whether the current load is sustainable. One poor day is not a crisis, but a pattern deserves attention.
Reduce volume or intensity when needed instead of forcing every planned session at full effort.