Manchester City manager Pep Guardiola said he hopes midfielder Phil Foden can replace the outgoing David Silva.
Foden, 19, could start against Dinamo Zagreb on Wednesday (17:55 GMT) with City already qualified as Champions League Group C winners.
Silva, 33, is leaving City after 10 years at the end of this season.
On Foden stepping up, Guardiola said: “That is our wish. Of course, David is a legend with the amount of games and titles, but we believe he can do it.”
The Premier League champions secured top spot with a 1-1 draw at home to Shakhtar Donetsk in their penultimate fixture and on Wednesday travel to face a Dinamo Zagreb side still with hopes of qualification for the last 16.
Ukrainian side Shakhtar are in pole position to finish as runners-up, but Dinamo Zagreb and Atalanta remain in contention.
Guardiola had said he was “so sorry” for Foden when the 19-year-old came off the bench to score late in a 2-0 win over Dinamo Zagreb in the reverse fixture in October.
On Tuesday, the City manager added: “In some departments he can improve. Without the ball, because he is so young, sometimes he has to think more about decision-making. It’s normal for his age. His development is perfect.
“I never doubt in him. The confidence is always there. If he plays bad the confidence is the same. But always he plays with a high standard.”
Guardiola, whose side trail Premier League leaders Liverpool by 14 points following a 2-1 defeat by derby rivals Manchester United on Saturday, will be without Silva, defender John Stones and striker Sergio Aguero in Zagreb.
“David had a huge kick in the dangerous part of his leg and it was too much of a risk to play. John is injured for a few weeks. Sergio is much better, but is still not ready,” said Guardiola.
“I accept we will use young players because we have so many injuries. We will put out the best squad for the circumstances. We already qualified and the Premier League is more important right now than the Champions League.”