A 17-year-old Tottenham defender, who has already impressed for the first team, could be the next in line to be handed an opportunity by Roberto De Zerbi.De Zerbi finally gave Spurs fans what they have been asking for by bringing on Williams-Barnett for a cameo against Crystal Palace after the game had already been won.One can argue that his brilliant run just before stoppage time, which should have yielded an assist, was the most exciting moment of the game for the home fans, who have been patiently waiting to see what the 18-year-old can do at Premier League level.Williams-Barnett’s U18s and U21s teammate could be the next academy youngster that the Italian decides to use off the bench after the latest events at Hotspur Way.Photo by Marc Atkins/Getty ImagesTottenham youngster Jun’ai Byfield trains with first-team ahead of Leeds clashJun’ai Byfield played three times for Tottenham’s senior side under Thomas Frank last season, twice in the Champions League and once in the Premier League.Although the 17-year-old is a centre-back by trade, he also covered in midfield and at right-back for the senior side, showcasing his versatility, and he did not look out of place at the highest level.The teenager suffered a back injury in May, which saw him miss the entirety of pre-season, and he only returned to action two weeks ago.However, Byfield was seen training with the Tottenham first-team at Hotspur Way in the latest training video shared by the club, as De Zerbi’s men prepared for the clash at Elland Road.Why Spurs fans may have to wait a bit longer to see Byfield in actionThe Spurs academy defender was out of action for five months with an injury, and he is still building towards full fitness.In fact, Byfield has now played 131 minutes for the Under-21s since his return from injury, and De Zerbi will surely want the youngster to have more game time under his legs before he runs out for the first team.Besides, Byfield is only now starting to work with De Zerbi and still needs to get used to the Italian’s style of football. With Spurs out of the Carabao Cup and not having any European football, it is unlikely that fans will get a glimpse of him for a couple more months, unless there is another injury crisis.The FA Cup third round match in January could be the perfect chance to get him back on the pitch with the senior Spurs side.READ MORE: Tottenham injury news vs Leeds: De Zerbi confirms one player is ready to returnThe post Luca Williams-Barnett is not the only teenager getting a chance in Tottenham training appeared first on Spurs Web.