It's easy said than done. I don't see how injury deprived Liverpool from reaching the Champions League finals, because they were kicked out by the current Champions PSG in the quarter finals. Liverpool was the only club that didn't suffer from injury to the point that it affected their performance and that was the luck that they had. They might not be capable of defending the title next season.
Unfortunately this is part of the game of football, luck and bad luck and also injuries.
In today's football these have increased considerably given the amount of matches that players have to follow and above all they have to give their all, given that they pay high salaries and the teams always expect high performances.