Tottenham Hotspur fans will be hoping that it is not too long before we see Dejan Kulusevski out on the pitch again.Kulusevski has now been sidelined for more than 13 months with a knee injury, and much to his disappointment, the attacking midfielder was unable to recover in time for the World Cup.Earlier this summer, Sweden’s team doctor explained the Tottenham man’s cartilage injury is in a tricky spot and it is not recovering quickly enough due to the stress that it is under.However, Spurs fans have some reason to be optimistic about the 26-year-old’s fitness as the new season approaches.(Credit @thefrederikkejensen / Instagram)Tottenham star Dejan Kulusevski has stepped up his rehabilitation this summerKulusevski has been sharing some promising injury updates over the last month, and the former Juventus man was among the first group of players to report to pre-season training at Spurs.Football.London point out that the Swede was seen working at the Hotspur Way gym, and seeing him at the training complex should spark hope that he is not far off returning to action.The website reveals that the attacking midfielder has been stepping up his recovery back home in Sweden through the summer.Two of Spurs’ other injured players, Mohammed Kudus and Wilson Odobert, were also spotted at the Hotspur Way gym in the first few days of pre-season.Will Roberto De Zerbi be tempted to sign another attacking midfielder?Kulusevski is not the only attacking midfielder who is out injured, with Xavi Simons expected to be sidelined until the end of the calendar year after injuring his ACL back in April.Additionally, James Maddison only returned to action in the final two games of last season after missing 10 months of football.With Lucas Bergvall continuing to be linked with a move away from Tottenham, De Zerbi may be tempted to add another attacking midfielder to his squad before the window slams shut.READ MORE: Ledley King says De Zerbi is already solving Tottenham’s ‘biggest’ 20-year problemThe post Dejan Kulusevski injury update will give Tottenham fans some pre-season hope appeared first on Spurs Web.