Noted - the reason I ask is that 14 players may seem like overkill if a) you won't suffer injuries in round 1 and b) you get to reinforce with injuries in mind.
Just an observation - I like the 14 man squad thing as such, but I'm not a fan of announcing the injuries before the reinforcement round(s). This means that you don't have to worry too much about having cover for as many positions as possible at any given time (which would be a more realistic worry and more of a challenge). See the thing? If I understand you right, you can simply take note of which players are out, and then bring in a couple of players capable of filling in for them (could even land pure upgrades if you're lucky) - and you can keep doing this all the way to the final.