"I am not surprised by the goal because he has the technical ability to do that sort of thing but it's fantastic for him and for all the squad, and very important for the future of the squad," Frenchman Puel told British media.
"It's important to stay patient with him because he is young and he cannot for the moment (show) everything he has got, but you can see through the goal that he is an interesting player.
"It is important not to rush him and take it step-by-step but he will get chances to play in the future. It is important to keep him fit."
The 23-year-old midfielder had to undergo an operation to rectify a knee problem he picked up while playing for Lille earlier this year.
The Saints, who are eighth in the Premier League, host fourth-placed Chelsea on Sunday.
(Reporting by Shravanth Vijayakumar in Bengaluru)
