Alli was replaced by Bale just after the hour mark with Spurs 5-0 up and coasting towards the fourth round.
But Mourinho insisted he was happy with the 24-year-old’s performance, and seemed to indicate he wants him to stay at the club.
He said: “I like very much. I think him and Gedson they were two players who were responsible from minute 10 until minute 75. They were the ones that created. They were the ones with mobility, they were the ones that started that dynamic that created problems for them and goals for us.
“So I’m really happy. Of course he was a little bit cautious, like all of the creative players, they were a little bit afraid of the pitch, of some emotional tackle. But very happy, very professional attitude and a good performance.”