Sargent joined Norwich in August 2021 from German side Werder Bremen and has scored 56 goals for the Canaries in 157 games.
Without him, Norwich were convincing winners against the Saddlers, with Jovon Makama scoring a hat-trick to help the Canaries into round four.
The 21-year-old has overtaken Sargent as Norwich’s top scorer with 12 goals against the American’s eight.
“Jovon is improving a lot,” said Clement. “The staff is working a lot with him, like with the other players, with all the details of how to become better.
“He’s already scored more goals [this season] than he scored last season in the lower league [with Lincoln] and that’s positive.
“He needs to keep this hunger and desire to become better in every detail of his game because he’s still a young player who can learn a lot, but he’s showing good potential and I’m happy about that.”
