Atletico Madrid head coach Diego Simeone has hailed the development of attacking stars Antoine Griezmann and Yannick Ferreira Carrasco.
Griezmann, who claimed the Golden Boot at Euro 2016 as he fired France to the final, has registered six goals and three assists in nine appearances in a strong start to the season.
Speaking ahead of their meeting with Rostov on Wednesday, Simeone praised his forward duo for becoming "men" during their time at the Vicente Calderon.
"Some of them came here as boys, matured personally and professionally here, and became men - like Griezmann or Carrasco," he said.
"The players that we signed have talent. Their best depends on them, and their physical and tactical progression."
"We've seen various Rostov games. They are dangerous because they know exactly how their game works," he said.
"This Rostov is different to Rubin Kazan in 2013. Yes, they have the same coach, but the players and the teams are different."
"It's a small pitch, with few gaps and a five-man defence. It will be difficult," the Belgium international said.
"It's been a while since they lost at home and I'm sure they will be eager to beat us and will be very motivated."
