NewsLoan watch: Morton scores brilliant goal for Hull as Carvalho makes debut
Morton scored with a brilliant long-range strike in stoppage time but it proved to be a consolation goal as the Tigers were beaten 2-1 by Norwich City in the Championship.
After completing his loan move for the remainder of the season on Wednesday, Carvalho was a starter for Liam Rosenior's side and played all of the affair at MKM Stadium.
On Carvalho, Rosenior said post-match: "I thought his debut was really, really good just without that end bit – but I know that end bit is going to come.
"Everybody can see his ability, his quality, the way that he pressed the game and his energy levels. We've got to bear in mind that's his first 90 minutes in a long, long time.
"He's only going to get better from there, which is very, very good from our point of view."