The prospect of winning gold isn't good enough for some of tennis's most decorated players. Last week, Bob and Mike Bryan, owners of 16 Grand Slam titles, became the latest to drop out of the Rio Games, which start later this week.
The brothers, who won the gold medal in London four years ago, joined a number of top-10 singles players bailing on Rio. Unfortunate, yes, but a permanent blemish on tennis? Far from it.
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