Barcelona stars Victor Valdes, Sergio Busquets, Gerard Pique, Cesc Fabregas, Andres Iniesta, Pedro and Xavi have all returned to the club after their holidays following their participation at Euro 2012 with Spain.
The seven players all reported for medicals at the Ciutat Esportiva on Monday morning and underwent a variety of tests.
Carles Puyol also had his medical check-up, although he had already rejoined the squad last week after his recovery from a knee operation.
The aforementioned players will all resume training later on Monday after the Barca squad enjoyed a day off on Sunday following their trip to Morocco.
The only first-team players who have yet to rejoin the club are Jordi Alba and Martin Montoya, who, together with Cristian Tello, are still in London for the Olympic Games.