More Upsets as Tennys Sandgren Takes Down a Diminished Stan Wawrinka

Both ninth-seeded players lost on Thursday at the Australian Open: Wawrinka to Sandgren, ranked 97th, and Johanna Konta to Bernarda Pera, an American ranked 123rd.

MELBOURNE, Australia — The first two rounds of the Australian Open have let the outsiders in.Tennys Sandgren, ranked 97th, said he watched Stan Wawrinka win the 2016 United States Open final in a bar.“I was having a few beers,” Sandgren said of Wawrinka’s third major win. “I was watching the tennis, thinking: That’s insane — an inhuman level of tennis.”On Thursday, an undaunted Sandgren beat ninth-seeded Wawrinka with some ease, 6-1, 6-2, 6-4. The men’s defending champion, Roger Federer, stay...