Jelena Jankovic won just three games as Simona Halep obliterated the 2009 Cincinnati Open champion to book a final date with Serena Williams.
The Romanian demolished her Serbian counterpart 6-1 6-2 in just 70 minutes to secure a showdown with the defending champion and world number one.
Both players broke one another's service game to sit level at 1-1 in the opener, but Halep raced away from there, inflicting three further breaks of serve to wrap up a one-sided first set and send a message to Williams in the process.
There was little by way of resistance from Jankovic in the second set, as Halep broke again to move 3-1 up, and again in the sixth and eighth game to breeze into Sunday's final.
Williams has won five of seven meetings with Halep.
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