"The 4:30 wakeup to start stringing tennis rackets is not the most pleasurable thing in the world," Yu said. The rackets Yu strings will be used in about six or seven hours, when the strings start to ...

Professional players are an exacting bunch. Many come to a match with enough freshly-strung racquets that they can switch to a new one at every ball change. Or, they might have frames strung at ...

Julien Klein pulls strings at the U.S. Open. No, he’s not in the business of getting prime seats for the finals, or grabbing a vacant suite, or lining up a quick rally with Roger Federer. But he could ...