Sprint and OnePlus today have announced the introduction of a OnePlus 5G smartphone to the US carrier's network. Sprint hasn't named the OnePlus 7 Pro 5G specifically but given that it's OnePlus' only 5G smartphone, there are just no other candidates. Sprint also hasn't disclosed the date or pricing at which the 5G OnePlus will be available, but we should should hear more about those soon enough. Of course there's an off chance that the device in question is the OnePlus 7T Pro, which is due in a few months. However an announcement for that so early would be more than a little...
Source: https://www.gsmarena.com/oneplus_7_pro_5g_is_coming_soon_to_sprint-news-38539.php