I have to admit, even I would have to stretch a long way to justify Christie beating Lili up while she is hospitalized. lol.
edit: Ah, I know who can do it. Think about who the easiest to manipulate would be, and then read on when you think you got the answer, and see if you are right.
The shadow-clad figure silently moved through the pitch black field behind the hospital. Room 614. Sixth floor. No problem.
With one single purpose, the figure glided through the field. Lili had a lot of enemies, her attitude had made sure of that. A lot of people wanted her hurt.
In the dead of darkness, the figure made its way to the wall, then activating a couple of servos, flew upwards. The figure scanned for Lili's life sign. She was in the room, alone, sleeping. The darkness meant she would not have been seen.
The figure pried the lock off the window, breaking it. She then slid the window open and made her way in. Lili was still sleeping, and looked pretty beat up from her fight with Asuka in which she'd been pummeled into submission.
She walked quietly over to Lili, making minimal footstep sounds. Then she clamped a hand over Lili's mouth so she couldn't scream. Lili was awake instantly and reflexively tried to fight, but her broken sternum and ribs immediately sent a shot of pain through her torso that made her moan and drop her arms. She tried to get a good look at her attacker... and her eyes grew wide when she recognized Alisa Boskonovich.
Alisa said to her in a whisper "I have been programmed to alter your attitude... this is from all the people in the King of Iron Fist Tournament that you have offended, spit on, looked down on, and otherwise demeaned. They... they have sent me with a... message."
Alisa drew her hand back, balled it into a fist, and punched Lili straight in the face. Lili screamed a muffled scream through Alisa's hand. Alisa punched her again. Lili screamed, muffled again, and tried to fumble for the call button on her bed. Alisa responded by headbutting Lili. Lili collapsed back into bed, unable to fight back. Alisa raised her fist and drove a hammer punch into Lili's chest. Pain shot through her like lightning. All she could do was gasp and wheeze. Alisa removed her hand from Lili's mouth. Lili couldn't muster the ability to speak, let alone yell. Alisa grabbed a handful of Lili's long blonde hair, and began to throw rapid-fire punches into the left side of her face. Cuts opened up under her eye, on her cheek, on her jaw. Blood flowed from them freely. When Alisa finished, Lili had been beaten unconscious. Her head lolled to one side, her lips open slightly. Blood smeared on her face, and her bedsheets, the cuts continuing to leak blood.
Her job done, Alisa pressed the call button on the side of the bed, then made her way over to the window and took off into the night.