World number one Jannik Sinner said his off-court turmoil over doping accusations was "heartbreaking", after winning the DavisCup with Italy on Sunday to compl... Already a Barron's subscriber?
MALAGA, Spain (AP) — Jannik Sinner was in the locker room, getting ready to go on court and try to win a match that would give Italy its second DavisCup title in a row, when his teammate, ...