Is it predetermined (obviously hidden) if player A is going to retire?

OR do injuries during the season affect their decision?

I guess what I am asking is during the season should I do a better job monitoring my stupidly signed high bonus players to prevent early retirements. Lol

Retirement is based on a random calculation that considers the age of the player, how many serious injuries he has had (not minor injuries), and whether he has been on a team in the last 2-3 years. The probability value that is used is the same that is displayed on the player card (although of course the player card number is more vague than the actual number).

Thanks!