Original sentence: In June 1989, he joined Leeds United, where he helped the club to become 2nd Division champions and spent periods on loan with both Plymouth Argyle and Blackburn Rovers before a reccurrence of his knee injury forced him into an early retirement
Edited sentence: In June 1989, he joined Leeds United, where he helped the club to become 2nd Division champions and spent periods on loan with both Plymouth Argyle and Blackburn Rovers before a recurrence of his knee injury forced him into an early retirement