Alexander Zverev made his ATP Finals debut this year at the O2 Arena and while it was not the showing that he wanted, it was a great experience for our spotlight player. Zverev started the season ranked number 24 and should finish the year as the number three ranked player.
He had a difficult draw. His first match was against  Marin Cilic, which he won 6-4, 3-6, 6-4. Perhaps that took more out him than anticipated, which was not a good thing for the young German. Next up was one of the toughest opponents currently playing this sport, Roger Federer. Although Zverev had beaten Federer twice previously, this was a different setting and Federer had the upper hand given his years of excelling at the ATP Finals. The first two sets were tightly contested and Zverev had chances to perhaps upset Federer; however, he did not capitalize and frustration got the better of him in the third set. He lost 6-7(6), 7-5, 1-6.
While he still had the possibility of making it to the semifinals, he had to defeat  Jack Sock in his final round robin match. They were tied 1:1 coming into this match and the potential was there for Zverev to win; however, once again, he failed to capitalize on crucial opportunities and he lost another three-set battle. Sock won 6-4, 1-6, 6-4 to clinch his spot in the semifinals.
SOURCE OF IMAGES: serveandrally