Henry, back in action last Saturday after a lengthy lay off, has been called up to the team's training base at Pennyhill Park as temporary injury cover for Alex Corbisiero, who remains at London Irish for treatment on his knee.
Henry came on as a second half substitute for Tony Buckley in Sharks 36-17 win over Scarlets at Salford City Stadium.
Ugo Monye (Harlequins) will also train with the squad while Freddie Burns (knee) stays at Gloucester Rugby for treatment.
England Senior training squad(33)
Chris Ashton (Saracens)
Brad Barritt (Saracens)
Mouritz Botha (Saracens)
Mike Brown (Harlequins)
Danny Care (Harlequins)
Dan Cole (Leicester Tigers)
Lee Dickson (Northampton Saints)
Owen Farrell (Saracens)
Toby Flood (Leicester Tigers)
Ben Foden (Northampton Saints)
Alex Goode (Saracens)
Dylan Hartley (Northampton Saints)