Manchester City striker Sergio Aguero believes that Manchester United have one of the most "naturally gifted" strikers in Radamel Falcao.
The Colombian international has struggled to make an impact since moving to Old Trafford from Monaco on a season-long loan last summer.
Just four goals have been contributed by the 29-year-old, who has struggled with injury woes and a failure to cement a regular first-team spot under manager Louis van Gaal.
"He isn't having an easy time this season, but I really admire his commitment and his class and qualities are permanent," Aguero told Sky Sports News. "He is probably one of the most naturally gifted strikers in football at the moment."
City will face United at Old Trafford on Sunday, and should the Red Devils earn a home win, they will go four points clear of their local rivals.
Manuel Pellegrini's side have fallen to nine points adrift of Premier League leaders Chelsea with seven games left to play.