Ferran Torres is already said to have passed his medical ahead of completing his move to Barcelona.
The Spain international has been a relative success during his time at Manchester City, playing a key role as the Citizens won another Premier League title.
But he is keen to secure a move back to Spain, and Barcelona will offer him that.
Torres has suffered from a fractured foot in recent months, but he is due to return just after the turn of the year and has come through his medical.
The winger posted a video of himself training in Valencia on Sunday, and he underwent his medical this morning.
The deal is expected to be confirmed later today with Torres expected to be unveiled to Camp Nou tomorrow (Tuesday).
At this point, Torres will remain ineligible to play due to Barcelona being too close to their salary limit.
Barca will need to reduce their spending for their newest signing to be registered with La Liga and eligible to play.