According to Inter.it Hernanes will be back in training tomorrow.
The Brazilian missed the game against Cagliari because of a thigh injury which he now has recovered from and should therefore be available for Mazzarri against Roma. However it’s not known whether he will be fit enough to start the game on Saturday.
This will be the first time that Hernanes will return to the capital since leaving Lazio in January.
Source: football-italia.net