Lewandowski will aim to be back as soon as possible to help ensure Barca make a strong start to their La Liga defence. Registering Rashford may make it easier for the champions to cope in the meantime, amidst controversy surrounding Marc-Andre Ter Stegen's injury absence and La Liga's rules regarding the filling of salary space taken up by players subject to long-term injuries. Following last season's issues which impacted signings Dani Olmo and Pau Victor, Barca will hope to avoid any similar problems dragging into the new season.