American Christopher Eubanks upset fifth-seeded Stefanos Tsitsipas on Monday at Wimbledon to reach his first quarterfinals at a Grand Slam tournament, while Novak Djokovic also moved on.American Christopher Eubanks upset fifth-seeded Stefanos Tsitsipas on Monday at Wimbledon to reach his first quarterfinals at a Grand Slam tournament, while Novak Djokovic also moved on.Read More