On asking your team how you want them to play, you can potentially be making them more susceptible to injuries. Be aware that some specific instructions and roles push your players harder than others.
Match Sharpness - Particularly important during pre-season or after a player returns from injury. Low match sharpness raises the chance of injury. The only way to increase match sharpness is by playing matches, so consider building the player up slowly with substitute appearances or low intensity non-competitive fixtures. You can also use the ‘Fitness’ training regime between matches to reduce the drop in match sharpness between matches.
Player Condition - Player condition can fluctuate during matches depending on in-match events. Manage those players in high demanding roles (such as marauding full backs or box-to-box midfielders) by making sure they have sufficient rest days between matches.
High Tempo - Asking your players to crank up their on pitch intensity may mean you win the ball back quicker or move it around faster, but it does also increase the chance of injury. Consider lowering your tempo, retaining the ball and taking a breather when in strong winning positions.
Hard Tackling - Hard tackling may give you more chance of winning the ball back quickly, but you are asking your players not to hold back for any challenges. This may be fine for an imposing ball winning midfielder, but a delicate winger won’t be thanking you after a heavy 50/50 challenge.
Get Stuck In - Only the most robust footballers need apply. Use it with caution for both disciplinary reasons and to make sure your physio isn’t overworked post-match.
Player Roles with ‘Tackle Harder’ set by default:
Ball Winning Midfielder, Defensive Midfielder, Defensive Winger, Defensive Forward