Serena Williams booked a Wimbledon final rematch against Angelique Kerber as the seven-time champion marched into her 10th All England Club title match with a 6-2, 6-4 rout of Julia Goerges on Thursday.
The Argentine was in danger of being dragged into a fifth set when he squandered four match points, one with a double-fault, at 5-4 having hit back from 1-3 down. "But I'm not sure if I'm a great coach", she said.
Contesting just her fourth tournament after taking more than a year out of tennis for the birth of her first child, the 181st-ranked Williams will play German 13th seed Julia Goerges for a place in Saturday's (Sunday NZT) final.
Giorgi hung in gamely to at least make Williams serve to reach her 35th Grand Slam semi-final and 11th at Wimbledon.
But the 29-year-old has erased those painful memories with a superb run, capped by a come from behind success against Bertens in her first Grand Slam quarter-final. I feel god, I feel like I did better today, I had to. She hit one at 122 miles per hour against Giorgi, delivered six of her seven aces in the final set, and won 44 of the last 54 points she served. She must be aggressive, with the right degree of control, and has to test the stamina of Williams who has so far won a stack of short points and rarely been pushed around court.
With Kerber also advancing, it is the first time two German women will play in the Wimbledon semifinals since 1931.
Kerber takes on Latvia's Jelena Ostapenko in the other semi-final.
They traded breaks early in both sets before Ostapenko broke decisively for a 3-2 lead in the second when Cibulkova sent a forehand long. "It's a great opportunity for me to meet her at that stage". I just kept fighting.
Kerber took advantage of Kasatkina's erratic serving and errors to return to the last four. Kerber starts off by winning the first service game but loses the next two despite having two break points. "I feel like I'm back, but I still have a long way to go to get to where I was".
Williams is the big favorite to win an eighth Wimbledon title with all of the top-10 seeded women already knocked out.
Here's the reason Williams has emerged as a favorite: She has seven Wimbledon titles, while the rest of the field has zero.
After losing the first set in the quarterfinals Tuesday, Serena Williams looked dejected and confused.
Elena Ostapenko their way into the semi-final took the match with the former fourth racket of the world Dominika Cibulkova.
Cibulkova did her best to try and hang on but the Slovakian was left chasing shadows as Ostapenko blasted a backhand victor on her first match point to reach the last four without dropping a set in this year's tournament.
Bertens tried to recover and clinched a break of her own but Goerges was not to be denied and levelled the match. It appeared nearly to be a reminder to Giorgi, who said on Monday that she doesn't watch women's tennis.
Shrieking and clenching her fists after every key point that went her way, Serena let out a gutteral "C'mon" once she wrapped up the set.
Williams has won her first five matches against unseeded opponents.