Javier Hernandez could become "a major influence" at Old Trafford, according to Manchester United assistant manager Mike Phelan.
The 22-year-old Mexico striker sealed a deal before the World Cup and went on to score two goals in South Africa.
As part of the package United will play his former club Chivas Guadalajara at the end of their summer tour.
Phelan said: "We were quietly pleased with what we saw of Javier at the World Cup.
"He is still on a break but we would like to get him on board as quickly as we can, so he will join us in America. Then hopefully he will be a major influence on the team.
"We did the deal before the World Cup and that has probably helped us a little bit! He has only just begun his career with the national team but already he is a very influential player for Mexico."
Hernandez, son of Javier Hernandez who played for Mexico in the 1986 World Cup, came to United's attention after scoring 29 goals in 79 games.
Phelan added on ManUtd.com: "He is young, athletic and as keen as mustard. He will be a good addition.
"We all hope he hits the ground running and adds to what we think is a good blend of youth and experience in our squad. We just hope it all comes together."
United head out to their training camp in Chicago on Monday with former Fulham defender Chris Smalling part of the squad.
Phelan said: "We had spoken to Chris a few times before he actually joined us. We kept in close contact with him. He is with us now and looking forward to the challenge.
"A club this big is brand new for him. But given time and with a bit of patience, I am sure he will do well. The tour will help him settle in and get to know everyone."Reuse content