The 24-year-old joins the Championship side on the back of a forgettable loan spell with Bundesliga side Augsburg, with whom he failed to make a single appearance in the first half of the 2023-24 campaign.
After spending the opening weeks of the season recovering from a knee injury, Tanganga was an unused substitute in a 1-1 draw with Koln on November 4 but did not make another matchday squad for Augsburg.
As a result, Tottenham exercised their right to recall the defender from Germany before sending him to Millwall, who are not believed to possess an option or obligation to make his stay permanent.
«I'm very happy [to be at Millwall]. I've not played much football recently, so it was important for me to pick the right club,» Tanganga told Millwall TV+ after penning his contract.
«The opportunity to come here presented itself, to work with someone I've worked with before and also been against when he was at Chelsea, so it was the best option for me to come here and be a part of Millwall. Fans will see me competing and giving 100% first and foremost. My style is aggressive and on the front foot and to give everything for the fans and the club.»
Head coach Joe Edwards has previous experience working with Tanganga, who donned the England colours at youth level while the former was in the Under-20s backroom staff, and the pair celebrated Toulon Tournament success together in 2017.
«I'm really pleased to get Japhet in the building,» Edwards added. «I've always followed his progress and watched keenly when he broke into the Spurs first-team. He's played in some big games and done really well in them. I
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