Maybe, but normally our subs are forwards and AMs to bring fresh legs vs tight defences.
Pep doesn't like to a sub a defensive player, rarely does.
I think Mendy has to be fully match fit before coming back in order to play a full match and avoid being subbed.
I also think getting Mendy back to rhythm is a clear priority before Angelino comes into play., who is just the back-up.
Pep brought Mendy on as a sub last time he came back from injury and has done it with Stones as well. Sam Lee's reporting they're planning to give him 20 minutes, and that's obviously going to be a substitution.
If we need goals, he won't bring him on. If we don't need goals, he probably will.