Snip.
Even while at Madrid, Modric's play time was given considerations and well managed such that his injury risk exposure was reduced, you are very correct, if AC Milan wants to get the best of Modric, they will have to pay good attention to this if not it they will have him injured and they will not get the value for the money they have spent on this transfer. By the way.they just signed Boniface to the team this will further help strength the team and possibly reduce the stress chance on othe players like Modric
Age can affect performance because physical conditions become weaker and are very susceptible to injury if forced to continue playing. Milan must be careful with Modric current condition. If the coach forces him to play too much and he suddenly suffers an injury in a less important match, then the management's plans will be in vain. Now Milan can only maximize his experience, but they can't expect too much from a veteran player who is nearing retirement.
Boniface presence is proof of Milan seriousness in building its squad. Modric experience in sending through balls to the front line will put even more pressure on the opposing defense. I also hope that other players, especially those operating in midfield, can develop their talents while Modric is still actively playing with them.