Weston McKennie left Leeds and England just hours after their relegation was confirmed with defeat at home to Tottenham.
The on-loan Juventus midfielder was taken off on the hour mark and was barracked by home fans as Spurs won 4-1 at Elland Road.
McKennie's father, John, took to social media to confirm his son was immediately cutting ties with Leeds.
He wrote: "All the best to LUFC! For those who supported Weston in a hostile environment you have my respect!
"For those who failed to remember it's a team sport you live to fight another day."