We asked Pellistri what his team-mates call him, now he is fully adapted to life at the Aon Training Complex, as every footballer needs a nickname!
“They call me Pelli,” he told us.
“I have been asked about what I like to be called. Some players call me Facu but others Pelli and, most of the time, it’s Pelli!”
Watch United’s Premier League 2 game with Chelsea live on MUTV (12:00 GMT kick-off on Friday).