Chelsea will have Jadon Sancho on loan for the season, and they may be obligated to purchase him based on performance.

Chelsea and Manchester United have agreed to a loan deal for forward Jadon Sancho.
The agreement is believed to involve a commitment to purchase if specific requirements are fulfilled.
In another agreement finalized late on Deadline Day, Chelsea have sent Raheem Sterling on loan to Arsenal.
In the 83 games he has played for United since his £73m transfer from Dortmund three years ago, Sancho has scored 12 goals and contributed six assists.
Sancho, with 23 England caps, lost favor at United last season due to a public dispute with Ten Hag.
The forward returned to Ten Hag’s squad this summer but has only played a few games off the bench in the Community Shield this season.
The forward was brought back into Ten Hag’s squad this summer, but his only involvement this season has been a short appearance off the bench in the Community Shield.