Even though Luka Vuskovic is yet to play a single game for Tottenham, he is already becoming one of the most valuble players in the club’s squad.Hamburg’s form has suffered a great deal when Vuskovic has not featured, with the central defender having arguably been the club’s most consistent performer this season.That was demonstrated by the fact that HSV lost all of their last three matches when the Croat was out injured, before finally returning to winning ways at Eintracht Frankfurt on Saturday, as the 19-year-old came off the bench to help his side see out the win.The Spurs teenager has posted some incredible numbers this season, demonstrating why many rate him as one of the best young defensive talents in European football.Credit: @harryphoto.kr / InstagramLuka Vuskovic’s value has skyrocketed ahead of Tottenham returnUsing data from the CIES Football Observatory, The Daily Mirror have now revealed that the centre-back has seen his value shoot up considerably over the course of the season.They now estimate that Vuskovic’s value sits somewhere between £36.3m and £42.3m, which is a huge number for a player who is still waiting for his Spurs debut.They point out that Croat’s value had already soared to £32.7m last August after he made a strong start to the season at HSV, and his value jumped a further £9.6m in the subsequent eight months.Spurs may struggle to keep Vuskovic if they do not stay upThe Mirror say that while the young defender will return to Spurs this summer, his future at N17 ‘remains uncertain’ due to the club’s precarious league position.Some of the biggest clubs in Europe are circling over Vuskovic ahead of the summer window, having been impressed with what they have seen of the youngster at Volksparkstadion this term.While Vuskovic has played down the speculation over his future, one would imagine that the centre-back would not be too keen to play in the Championship.READ MORE: ‘Richarlison remains firmly on their radar’: Tottenham could have a familiar buyer this summerThe post Luka Vuskovic’s market valuation takes another jump ahead of Tottenham debut appeared first on Spurs Web.