Manchester City midfielder Yaya Toure is confident Benjamin Mendy will justify his price-tag.
Toure believes Mendy has the potential to make a big impact next season.
The French left-back joined City on a five-year deal earlier this week from Monaco, where he helped them win the Ligue 1 title and reach the Champions League semi-finals last season.
"I know Mendy, because he's French and he's been playing for my former club Monaco. I think he's a fantastic player," Toure told Sky Sports.
"You will see in the Premier League how powerful he is, how much energy he has. This guy is very exciting to see."