Highlights: Zverev Extends Winning Record Over Cilic To Start His Nitto ATP Finals
Watch highlights as Alexander Zverev battles through two tie-breaks to beat Marin Cilic in Group Guga Kuerten's first match at the 2018 Nitto ATP Finals. Oliver Marach and Mate Pavic also defeat Pierre-Hugues Herbert and Nicolas Mahut. Photo Credit: Clive Brunskill/Getty Images. Watch live tennis at tennistv.com.