Raphinha is the subject of a race to be signed by the Blues.
The player has been the subject of interest from both Barcelona andArsenal.
Raphinha was signed from Rennes for 17 million dollars two years ago.
The 25-year-old is part of a new-look attacking line-up and has already been contacted by the American owners of the club.
There hasn't been a formal offer made to the team, who were in danger of being demoted to the second tier.
Raphinha is due to report back for pre-season training at the beginning of next week, and he scored the opener in the win over the Bees.
KalvinPhillips is set to join Manchester City for £45 million.
Todd Boehly moved quickly in his role as interim sporting director when he lent Romelu Lukaku back to Inter Milan.
Once the 29-year-old has completed a medical, that move is expected to be announced.