Why would an injured player make themselves available to play?
Mourinho is making an arse out of himself. As suggested by
@Brightonian, there is no medical gain to be had by rushing players back from injury if they aren't fit to play. If they were genuinely fit then they would be playing games.
In two interviews Mourinho has managed to turn Smalling and Jones into a pair of lazy, uncommitted and (let's be honest) unprofessional footballers, accusations that have never, at any point in their careers, been thrown in their direction. They've worked (and regularly played) under some very demanding coaches, too.
Yet all it takes is Mourinho to open his gob and somehow so many people jump on yet another bandwagon. It's frankly ridiculous. If he told some of you lot to jump off a bridge you'd be doing it via cartwheel.