The Belgian’s arrival was confirmed on Wednesday afternoon but further additions are required if Tottenham Hotspur are to push on next season.
The Spurs rear-guard now looks well stocked, with quality cover in each position, and attention must turn towards acquisitions further up the pitch.
For all of Ryan Mason’s energy and drive, there is the sense that a little bit more quality, and a true defensive-minded player, is needed alongside the impressive Nabil Bentaleb.
James McCarthy has also been touted, however, and would be a great addition to the Tottenham squad. Aaron Lennon’s possible move in the opposite direction could also help grease the wheels for any potential deal.
The need for an additional forward is clear with neither Roberto Soldado nor Emmanuel Adebayor capable of offering consistent, quality competition for Harry Kane. Christian Benteke has long been linked but his £32.5 million release clause will likely price him out of a move to White Hart Lane.
Saido Berahino could represent better value and would offer a pacy alternative to Kane. The two have also played together for England’s under-21s and could potentially strike up a fearsome partnership.
Nacer Chadli was the only Spurs attacker to offer consistency from wide areas last season - though even he struggled at times - and another quality option is vital if they are to push on.
Tottenham missed out on Anthony Martial after he signed a new deal at Monaco last month, while Yevhen Konoplyanka looks set to finally join Sevilla, as per ESPN.
Reported target Yannick Carassco has attracted the interest of Atletico Madrid, according to Marca, but he is the man Spurs should be doing their utmost to bring to the Lane.
Valued at a rumoured £18 million, Carassco's signing would be something of a risk but he is just the type of direct, pacy player - with a reliable end-product - that Spurs need attacking from wide areas.