The 19-year was involved in Serbia's impressive tournament triumph in New Zealand last month.
Few Spurs players have had a summer as action packed and exciting as Tottenham's young Serbian star, and it was ultimately a rewarding period too as he and his teammates took home the Under-20 World Cup in New Zealand.
The 19-year-old played every minute of every game, which saw dramatic knockout wins that either came courtesy of penalties or extra time goals.
Velkjovic will now be hoping to carry his form into pre-season, with the hope that he can impress Mauricio Pochettino in the next six weeks. Spurs are thought to be on the lookout for a defensive midfielder, a role the youngster can operate in, and this could be the only possible route to the first team considering the plethora of central defenders the club currently have on their books..
Otherwise, the player will likely be looking to benefit from a loan spell that went a little better than his two attempts last season.
Veljkovic struggled to get into Middlesbrough's starting eleven in the first half of the season, as Aitor Karanka's side challenged for automatic promotion, and then the young Spurs man was injured after relocating to Charlton.
Altogether, he made just 8 appearances in the 2014/15 campaign, mostly in a midfield position, and if Velkjovic is not logging minutes at Tottenham, he will be eager to go to a Championship or Premier League side where he can.