With the war escalating, the club's own players were not able to play as much for Blackpool and Blackburn Rovers decided to play in the league which meant that their players who had played for Blackpool the previous season would no longer be available.
The club's own players were not able to play as much for Blackpool and Blackburn Rovers decided to play in the league. This was with the war escalating. Their players would no longer be available. This was what this league meant. These players had played for Blackpool the previous season.