At first, Barcelona agreeing to sign Marcus Rashford on loan from Manchester United for the coming season seems like a deal that works for everyone. Rashford wanted to leave United, who were keen to get his £325,000-a-week ($438,000) wages off their books, while Barcelona have been looking for an experienced player to cover at left-wing and centre-forward. The 27-year-old fits that profile. The immediate problem, however, is whether Barca will be able to even play Rashford given their long-running issues registering players within La Liga’s strict salary limits. Their most recent registration problems came last winter, when only Spanish government intervention allowed the team to use attacking midfielder Dani Olmo and backup forward Pau Victor in the second half of 2024-25. Uncertainty over their squad situation led the Athletic Club attacker Nico Williams to decide against joining Barca this summer, after a deal had otherwise been agreed. The club are currently...