Stefanos Tsitsipas defeated Thanasi Kokkinakis 6-1, 6-4 on Friday to bring Team Europe and Team World level at the Laver Cup.Francisco Cerundolo of Argentina defeated Casper Ruud of Norway 6-4, 6-4 in the opening match of the men's indoor hard-court competition, which has a structure similar to golf's Ryder Cup. This gave Team World the lead. #tsitsipas#lavercup