Novak Djokovic said he was bothered by a wrist problem during the Laver Cup in London and that his lengthy absence from the Tour recently could be to blame. The three-day tournament in London’s O2 Arena was Djokovic’s first event since the Serb won his 21st Grand Slam singles title at Wimbledon in early July….

LONDON—The last to arrive, befitting his reputation in the locker room, Frances Tiafoe strutted into the post-match news conference after clinching Team World’s Laver Cup victory over Roger Federer’s star-studded Team Europe and shouted, “Champs are here!” Then the 24-year-old from Maryland joined his teammates at the table where the silver trophy was resting Sunday…

LONDON—Roger Federer’s tearful farewell to his playing career is over. True to his word, the 20-time Grand Slam champion did not say goodbye for good to tennis. A day after heading into retirement with a Laver Cup doubles match alongside longtime rival Rafaal Nadal—the pair sat crying, side by side, when it ended—Federer was back…