I had a thought a while ago that players could actually miss training completely. Using your example the player could miss training with his current team because he sells before training. He could then get transferred to a team who has already had training. Which made me think at what point weekly minutes are reset. If minutes reset at a training update then would they transfer to the next week.
For the sake of the argument, let's say he'd be sold to a manager from same country (we want to be sold to one of our local managers).