no, you need 15 reds if you give them straight to your injured player.
(and you need 2 blue packs straight , to get a player from bad morale to superb).
I suggest to read those two threads about the basics of the game
This
https://forum.topeleven.com/tutorial...youre-new.html
and this is a wiki
https://top-eleven.fandom.com/wiki/Top-Eleven_Wiki