Warren Moon is doling out some seriously high praise on Michael Penix Jr. ... telling TMZ Sports the Washington quarterback straight up "throws as pretty a ball as mine!"
The former Huskies signal-caller didn't stop the compliments there, however ... telling us he believes the current UDub QB1 could end up being the No. 2-ranked quarterback behind Caleb Williams when the 2024 NFL Draft officially rolls around in April.
"I watch him throw," Moon said, "and I've watched a lot of quarterbacks throw the football -- and this guy throws as pretty a ball as mine.