Chelsea co-owner, Toddy Boehly, told Billy Gilmour not to leave the club this summer “as things may change”, The Athletic reports.
Thomas Tuchel had advised Gilmour to join Brighton on loan as Graham Potter would be ideal to help with his development.
However, Boehly urged the 21-year-old to remain at Stamford Bridge.
Gilmour decided to join Brighton on transfer deadline day.
In an ironic twist of events, Potter replaced Tuchel as Chelsea manager last week.
It left Gilmour “baffled”.
The midfielder has already made his debut for the Seagulls, coming off the bench in a 5-2 victory over Leicester City.