Yes they will. Your syrian will attack you piggie in fear. Both end up injured cuz your piggie will try to defend itself by biting back.

If you house a hamster and piggie together sure fight till one of them is dead... so don't house them together lo.

Please research. The key to owning any pet is research, research and research. you must know about the animal to be able to care for it properly. You can do that by reading the first page first. There was someone giving up a piggie for adoption.