Are there 3 out for 4 days and 1 out for 3 days? This is a really difficult decision if you should spend red packs to heal this players.
Provided that I have sufficient red packs, I immediately heal any useful player out for 6 or more days, and generally I do not heal any player out for 1 or 2 days unless they are essential to the team on next 2 days. The types of injury you are suffering is the hardest to accept. And there are even 4 on same match. I feel sorry for you.