If Noxus Saboteur dies in combat with an opponent's unit that also dies, can the opponent activate a hidden Zhonya to save their unit?

Ruling: No, the opponent cannot activate Zhonya to save their unit if it dies in combat with Noxus Saboteur.

Sequence:

• Combat damage occurs
• Units are removed from the board
• No window exists between these steps for the opponent to react and activate Zhonya