The Spanish defender, who joined Arsenal from the LaLiga giants' academy aged 16, has made the position his own at the Emirates since making his debut in September 2013.
He has been linked with a switch back to Camp Nou on a number of occasions and the rumours have resurfaced, despite only signing a new six-year deal with the Gunners in November.
Reports suggest the 21-year-old will be one of the Catalan club's main targets this summer and Bellerin would apparently be open to the move if manager Arsene Wenger ends his reign as Arsenal boss.