He probably knows by now that Naruto is the most important person in the battlefield that will be able to put an end to this war. Surely not him since he realized that Naruto has become more powerful.
That's why when you look at this panel, when the biju bomb is about to explode, Sasuke seems to be shielding Naruto. I know it would still be useless but, his thoughts alone to protect Naruto confirms that Sasuke has already admitted inferiority to Naruto.
Here's another panel which confirms that Sasuke's new role now is to be Naruto's shield.
That's why when you look at this panel, when the biju bomb is about to explode, Sasuke seems to be shielding Naruto. I know it would still be useless but, his thoughts alone to protect Naruto confirms that Sasuke has already admitted inferiority to Naruto.
You must be registered for see images
Here's another panel which confirms that Sasuke's new role now is to be Naruto's shield.
You must be registered for see images