Fergie compares Hernandez to Solskjaer, insisting he had no idea he would have had this much of an impact & says Berbatov's new position on the bench must be 'horrible'
The 22-year-old has scored 18 goals so far this season and many have compared him to the start Ole Gunnar Solksjaer made to his United career.
Chicharito was bought from Guadalajara last summer and has so far more than justified his £7 million price-tag.
"I really didn't expect Hernandez to have this impact," Ferguson told reporters.
"As we said to Ole Gunnar Solskjaer, we thought his first season would be about integration.
"Solskjaer played in a few reserves games and scored a hat-trick against Leeds. After that [coach] Jim Ryan came to me and said he is a first-team player. We made him a sub the following week against Blackburn and he scored.
"The only advantage for Hernandez was that he'd played in the World Cup so there was a profile attached to him and he had also come from a much tougher domestic competition."
It is especially Chicharito’s ability to position himself in the right place at the right time that has earned the respect of manager Ferguson.
"Hernandez is fantastic at taking up positions inside the penalty box," said Ferguson.
"It is natural. He has the instinct to move around and his timing is terrific. There have only been a few top strikers who have had that quality.
"Ole was one and Gary Lineker probably never scored a good goal in his life, but he was always in space. He'd get rebounds off goalkeepers and was always in really good areas."
Dimitar Berbatov - due to the suspension of Wayne Rooney - is likely to start up-front with Hernandez on Saturday as United clash with Manchester City in the much anticipated FA Cup Semi-Final.
The Bulgarian, who is likely to receive the Premier League golden boot this season, has surprisingly found himself on the bench of late as Chicharito continues his impressive goalscoring form.
"It is unfortunate for Dimitar because he is a fantastic player," said Ferguson of Berbatov's present plight. "But the reasons are obvious - the emergence of Hernandez in the last couple of months has been startling.
"He is improving all the time and is getting stronger. It is very difficult to leave a player out when he hits that kind of form.
"Every manager and every player in the country has faced that situation in their career when someone emerges to challenge you.
"It is the horrible part of being a footballer."
Last summer Wayne Rooney made comments that United are unable to recruit high quality players during the transfer window, but Chicharito’s impressive start to his campaing has answered the England international’s concerns.
"I don't think he really meant that anyway," laughed Ferguson.
"I think he was prompted on that one. He probably thought he could make me angry."