Manchester City boss Sven-Goran Eriksson was delighted with the debut display by Nery Castillo in the goalless draw with West Ham in the FA Cup third round.
The 23-year-old Mexico international forward has joined the Citizens on loan from Shakhtar Donetsk and lasted 72 minutes of the Upton Park encounter, making a favourable impression on Eriksson.
He said: "He is a new player, coming to a new country, a new club with a new style of football and he can't speak very much English - when you think about all that he was brilliant.
"He started the game absolutely fantastic. He has quick feet, good technique, very seldom gives the ball away and has a lot of pace.
"He will be an important player for us in the future. He was very, very good."
Meanwhile, the Swede also admitted that he is keen to do well in the FA Cup, having fielded a virtual full-strength side against the Hammers.
He added: "If you are in the Champions League and are fighting to win the Premier League, then I can understand it.
"If you want to be competitive all over the place you have to almost have two teams and rotate players.
"But we are not playing in Europe and we were knocked out of the Carling Cup, so we will do everything we can in the league and the FA Cup."