Attack Daria Kasatkina's backhand at your own risk.
Angelique Kerber appeared to have the 20th-seeded on the stretch, when Kasatkina pulled off this stunning, sliding backhand stab pass.
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That jaw-dropping sealed Kasatkina's second break for 3-0.
Kasatkina dished out an opening-set bagel in a mere 21 minutes as part of a brilliant 6-0, 6-2 demolition of the former world No. 1 that spanned just 58 minutes.
The 19th-ranked Russian roared into her first BNP Paribas Open semifinal where she will face either eighth-seeded Venus Williams or Carla Suarez Navarro.
Kasatkina posted her ninth career victory over a Top 10 opponent advancing to her third semifinal of the season.
Photo credit: Dan Huerlimann/Beelde Images