Roger Federer, right, puts his arm around Rafael Nadal after defeating him in the men’s singles final at Wimbledon in 2006. For two decades, they were the sport’s top players, along with Novak ...

WIMBLEDON, England — All these years later, Roger Federer and Rafael Nadal will meet again at Wimbledon for the 40th installment of their terrific rivalry — and first at the ...