The match that precedes Williams on Centre Court promises to be more competitive.
Ostapenko, 21, had admitted she cracked under the strain of defending the French Open title when she lost in the first round last month. She had never even got to the quarter-finals of a major tournament before, let alone the semi-finals.
"Every match starts from zero", Goerges said of her semifinal matchup against Williams. And I feel like I'm back.
Still, Williams said she's not getting too excited as she's still adjusting to tennis after returning from maternity leave.
The fifth-seeded del Potro failed to convert four match points when serving at 5-4 in the fourth set, but maintained his composure to close out the contest with his first opportunity in the tiebreaker that followed.
And while she has benefited from the decimation of the seeds in the women's draw - none of the top 10 made the quarter-finals for the first time ever in the Open era - the player herself believes she has always had the skills to succeed at SW19.
"I'm just here just to be here, and to prove that I'm back", Williams added.
"But I'm just very glad the way I handled everything today because it wasn't an easy match at all".
With no top-10 seeds making the quarterfinals for the first time in Wimbledon history, 11th-seeded Kerber is the highest-ranked player left in the hunt for the Venus Rosewater Dish.
Seven-time champion Serena Williams reached the Wimbledon quarter-finals with a straightforward win over Russian qualifier Evgeniya Rodina.
The former world number one then capitalised on more poor play from Ostapenko, breaking her serve at the first time of asking in the second set and again in the sixth game. She beat the ninth-seeded Williams in the third round after coming from a break down in the third set.
The Queen is back, with Tuesday's win guaranteeing that she will jump from 181 to at least 51 when the new rankings are announced next week.
Triumphant in her two previous Wimbledon tilts in 2015 and 2016, Williams's victory also extended her winning streak on the London grass to 19 matches.
Williams, for the first time since her comeback, appears to have her body and mind aligned to take that next step.
Jerry Bembry is a senior writer at The Undefeated.
He is very listened to in the group. "Against Portugal we thought we had won it before the start of the game". Hazard continued: "The French team has done what they have done since Didier Deschamps came in as coach".
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Bork hearings seem like a kumbaya session by comparison. ( Thomas was confirmed in 1991, Trump and Ivana split up in 1992). Trump critics might argue that the other four judges don't have to be corrupt, just authentically conservative.
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