Central Midfielder: Arthur Melo

Arthur has made no bones about the fact that he is at Barcelona to make a name for himself and leave behind a legacy for many to cherish. For quite a while, he has been touted as Xavi's heir thanks to his pyrotechnics in the midfield.
Nevertheless, there have been reports that the former Gremio ace has had difficulty acclimatizing to the rhythm of the Spanish league, and will probably have to work on his body if he wishes to excel here.
Winger: Lionel Messi

Lionel Messi hasn't had quite the summer he had wished for, with the Argentine once again falling short of international glory and then going on to make some controversial remarks to add insult to injury.
Hopefully, his failures on the international front won't blight his headspace as the club football gets underway. Needless to say, he is a guaranteed starter under Valverde.