Leicester City Nigel Pearson was delighted by the impact made by Dany N'Guessan in the 2-1 FA Cup third round victory at home to Swansea City.
The 22-year-old winger netted a last-minute winner at the Walkers Stadium, having joined the Foxes from Lincoln City in the summer.
Pearson told the Leicester Mercury: "Dany has made a big step-up from last season.
"For him this is going to be a huge learning curve. He has done very well for us so far and I would expect that to continue.
"There is no doubt he has masses of potential and he will get better. It is good to have players like that available to make changes."