The 23-year-old was searching for a place in the final of Indian Wells when Swiatek lost to Mirra Andreeva in the last four, 6-7, 6-1, 3-6.
It was her second defeat against the Russian in as many months as Andreeva got the better of the Pole at the Dubai Tennis Championships in February.
Swiatek is now 0-3 in WTA semi-finals this year, having lost to Madison Keys in Australia, Jelena Ostapenko in Qatar, and Andreeva in Indian Wells.
Ahead of her return to action in Miami, one WTA legend took the time to share her thoughts on Swiatek’s recent dip in form.