Emma Raducanu of Great Britain hits a return to Belinda Bencic of Switzerland during their quarterfinals round match on the tenth day of the US Open Tennis Championships the USTA National Tennis Center in Flushing Meadows, New York, USA, 08 September 2021. The US Open runs from 30 August through 12 September. (Photo by Justin Lane/EPA/EFE)

Microsoft CEO Steve Ballmer (L) shakes hands with Skype CEO Tony Bates during a news conference on May 10, 2011 in San Francisco, California. Microsoft has agreed to buy Skype for $8.5 billion. (Photo by Justin Sullivan/Getty Images)

A man stands next to his giant pumpkins as he waits for them to be weighed in at the 34th Annual Safeway World Championship Pumpkin Weigh-Off October 8, 2007 in Half Moon Bay, California. (Photo by Justin Sullivan/Getty Images)

A sign is posted in front of the new Yoga Room at San Francisco International Airport's terminal two on January 26, 2012 in San Francisco, California. (Photo by Justin Sullivan/Getty Images)

A pedestrian walks by an Apple Store following an announcement that Apple has become the world's most valuable brand on May 9, 2011 in San Francisco, California. In a report released by London based Millward Brown, Apple Inc. has surpassed Google to claim the top spot in a global ranking of brand value this year with an estimated value of more than $153 billion up 84 percent from last year. (Photo by Justin Sullivan/Getty Images)

Apple CEO Steve Jobs delivers the keynote address at the 2011 Apple World Wide Developers Conference at the Moscone Center on June 6, 2011 in San Francisco, California. Apple CEO Steve Jobs returned from sick leave to introduce Apple's new iCloud storage system and the next versions of Apple's iOS and Mac OSX. (Photo by Justin Sullivan/Getty Images)

A German Shepard bares its teeth during Schutzhund attack dog training at Witmer-Tyson Imports February 14, 2002 in Newark, CA. (Photo by Justin Sullivan/Getty Images)