Canada's Eugenie Bouchard was eliminated from the Connecticut Open on Tuesday night, falling in straight sets to top seed Agnieszka Radwanska of Poland in the second round.
Radwanska, the World No. 10, downed the 23-year-old from Westmount, Que., 6-3, 7-5 in one hour 45 minutes.
Radwanka converted on 5 of 12 break points while Bouchard was 2 for 6.
Bouchard, ranked 74th in the world, fought back in the second set after being broken to go down 5-3. She broke Radwanska right back and held serve to tie the game 5-all.
Radwanska held serve in the next game, then broke Bouchard for the victory. Bouchard fought off two match points but was broken while serving to force a tiebreak.
Bouchard is winless in four matches against Radwanska in her career.
Also advancing were Australia's Daria Gavrilova, who needed 2 hours, 12 minutes to defeat Timea Babos of Hungary 7-5, 7-6 (6), and Elise Mertens of Belgium, a straight-sets winner over Russia's Daria Kasatkina.
The Connecticut Open is the final WTA Premier tournament before the U.S. Open, which begins next Monday.