Barcelona will reportedly not allow Pedro to join Manchester United until Neymar returns to full health.
The Brazilian attacker is expected to be on the sidelines for two weeks after contracting mumps.
United manager Louis van Gaal is believed to be eager to get Pedro through the Old Trafford doors in time for Friday's trip to face Aston Villa.
However, according to Sport, Barcelona want Pedro to play in the Super Cup tie against Sevilla and the Spanish giants will not offload the winger until Neymar returns to the team.
Pedro reportedly has a release clause worth £23m.
