The Brazil international finalised his £52m transfer to Old Trafford from Ukrainian Premier League champions Shakhtar Donetsk on Friday.
Fred will be tasked with improving Jose Mourinho’s options in the middle of the park in the new Premier League campaign.
Former England international Michael Carrick called time on his Manchester United career at the end of the 2017-18 season to make the switch over to Mourinho’s coaching staff.
Belgium international Marouane Fellaini is being tipped to leave Manchester United after he failed to sign a new deal with the Red Devils this summer.
Manchester United will be hoping to overturn a 19-point deficit next season after Mourinho’s side finished a long way behind Premier League champions Manchester City last term.
Former Red Devils midfielder Robson believes Fred will prove a hit at Manchester United following his big-money summer move.
“I think everybody was saying that we just needed a bit more mobility and a little bit more creativity in that midfield area,” Robson told the club’s website.
“Fred definitely gives you that. He’s been very good for Shakhtar, so hopefully he can take to the Premier League and do really well for United.”
Manchester United haven’t won the Premier League title since 2013 when Sir Alex Ferguson was still in charge of the Old Trafford outfit.
Fred is Manchester United’s second summer signing after the Red Devils recruited Portuguese defender Diogo Dalot from FC Porto.
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