That's obvious Hojlund needs to be sold. He doesn't fit Amorim's strategy, and easy to recoup some money from him. Even Amorim has also showed his gesture about how he liked Zirkzee so much instead of Hojlund. It's because Zirkzee can fit Amorim's plan better than Hojlund. Although he lacked of goal productivity instead of Hojlund. I also remind you total goal is not the only aspect to determine which better between him and Hojlund. that is enough to answer who is gonna be sold before the end of summer window.
Compared to Højlund, Zirkzee is still expected to perform better and is more important for Man United this season because of his versatility. Moreover, with Højlund’s form continuing to decline, Zirkzee’s presence feels even more crucial in providing new options for the attack. Even when Napoli were ready to bring in Zirkzee, Man United refused to let him go and rejected all offers, as Amorim still believed Zirkzee was more worthy of being kept, despite his record actually being more concerning than Højlund’s. And also they need to release Hojlund as soon as possible to cover the losses on bringing in Hojlund.
That's why Amorim included Zirkze in the squad while he also excluded Hojlund. He even tells Hojlund to leave, but still yet in finding a new team for him. It most probably he goes back to the Italy.