I agree it would be the rational choice. Most probably Forget has not decided between Gasquet and PHM so he wants to see both of them in practice before committing to a decision.
I think Tsonga is everything but a lock too. He was playing very poorly in Miami (and also partly in IW), he'll have to do much better in training.
He's also a bit injured at the left hand - he decided to play IW and Miami despite of this injury, which is fine as long as he plays for himself, but if he's not 100% fit, he shouldn't play for the team.
It really is completely open on the French side atm.