Chelsea defender Fikayo Tomori has completed his loan switch to AC Milan.
The 23-year-old has joined the Rossoneri until the end of the season, Chelsea announced on Friday evening.
Milan are understood to have retained an option to buy Tomori for £25m in the summer, following the loan.
Thiago Silva's summer arrival at Chelsea pushed Tomori further down the Stamford Bridge pecking order, with Kurt Zouma, Toni Rudiger and Andreas Christensen all also ahead of him.
The Canada-born defender opted to stay and fight for a first-team place before the start of the campaign, but has now grasped the chance of a big loan move to Italy.
Title-chasing Milan will offer Tomori a big chance to assert his top-level credentials.
Despite his temporary departure from west London, boss Frank Lampard has insisted that Tomori still has a "long-term future" with the Blues.
"Fikayo Tomori will spend the rest of this season on loan with Serie A leaders AC Milan," Chelsea confirmed in a statement.
"The academy graduate will continue his development at San Siro having been with Chelsea since under-eights level."
Tomori impressed on loan at Derby – under then Rams boss Lampard – in the 2018-19 campaign.
Lampard then ushered the talented defender into the Chelsea first team after taking the helm for last season.
Tomori slipped out of the starting line-up for the second half of last term though, and has so far been unable to force his way back into regular first-team action.
