Cape Town - Manchester City's Patrick Roberts had a "good quality" outing for Celtic against his parent club, City manager Pep Guardiola said after the winger got on the score-sheet against them.
Roberts put the Scottish champions 1-0 up in their eventual 1-1 draw in the final match of Champions League group C.
"He has potential. I am so happy with his performance," Guardiola said of the 19-year-old, who has netted 10 goals since starting in Scotland in January.
"We are going to talk about his future at the end of the season," Guardiola told the BBC. "We know his quality, but the decision is not about one game. It is for one season."
"He has good quality with the winger, one against one. He worked defensively."
Roberts joined City from Championship side Fulham in July last year and was loaned to Celtic for 18 months.
Celtic manager Brendan Rodgers also saw a bright future for Roberts.
"I'm sure there will be a big career for him at Manchester City," Rodgers said.
Rodgers said Roberts is a "top young English talent" and "in the right place at this time in the career."
"There's no point in him sitting on the bench and not playing, it's great that Manchester City allow him to play in a game like this."
City were guaranteed second in Group C behind Barcelona regardless of the result and face either Atletico Madrid, Napoli, Monaco, Real Madrid, Borussia Dortmund, Juventus or Sevilla in the last 16.
The draw is to be made on Monday next week.