WIMBLEDON, England — Andy Murray has certainly had his major moments, none better than becoming the first British man to win Wimbledon in 77 years.

But there is a dark side to his deep runs in the tournaments that matter most. No man in the nearly 50 years of open tennis has played so many Grand Slam singles finals while winning so few. Murray’s 2-8 record is due to the prodigious drive and talent of two men: Novak Djokovic and Roger Federer, who between them have been his opponents in all 10 of his previous major finals.

But the 11th will have a radically different look. On Sunday, when Murray trudges — Murray is a trudger — onto Centre Court for his latest Wimbledon final, the big man across the net will be Milos Raonic.

The sixth-seeded Raonic, who knocked out Federer on Friday in a five-set semifinal, is no long-shot newcomer. With his thunderous serve and professional approach, he has been a young threat on the rise for years. During the 2011 Australian Open, Andy Roddick’s hard-charging agent, Ken Meyerson, who died much too young later that year, pulled me aside on his way to watch Raonic and said, “With this kid’s serve and game, he’s a future Grand Slam contender.”