World Juniors 2021: Top four storylines to watch Unknown 21:50 The tournament gets underway on Christmas Day and there's a number of topics to keep an eye on. Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsDubai Tennis Championships: Leander Paes and partner Jamie Cerretani lose in final to Jean-Julien Rojer-Horia TecauNavjot Kaur's family had trouble believing she had actually won Senior Asian Championships gold medal at firstPremier League: Chelsea's clash against Manchester City brings stark reminder of how their paths have diverged this seasonParis Saint-Germain's Neymar undergoes successful surgery on broken foot but doctors unsure of return dateMexican Open: Juan Martin del Potro beats Kevin Anderson to clinch ATP title; Lesia Tsurenko defends WTA trophyISSF World Cup: Shahzar Rizvi clinches gold in 10m air pistol with world record score; Jitu Rai, Mehuli Ghosh win bronze