The fourth-seeded Radwanska won on her eighth match point to close out a game in which she also saved three break points.
Last year, Radwanska became the first Polish woman since 1939 to reach a Grand Slam final before she fell to Serena Williams. On Thursday in the semifinals, Radwanska will face 23rd-seeded Sabine Lisicki, who knocked Williams out of the tournament then returned less than 24 hours later to beat Kaia Kanepi.
Radwanska had 18 unforced errors to 40 for Li, who won the 2011 French Open.
More Sports Headlines
An open letter to new M's GM Jerry Dipoto Goff throws 4 TD passes as Cal rallies to beat Cougars 34-28 A’s beat Mariners 7-5 in 13 innings Rawls unfazed by chance to be Seahawks’ lead back Juulsen, Skoleski lead Silvertips to 3-1 victory Nats' Scherzer strikes out 17 Mets as he pitches 2nd no-hitter of season Seahawks' Lynch, Mebane to be game-time decisions Monday night No. 12 Clemson holds on to beat No. 6 Notre Dame 24-22
Our new comment system is not supported in IE 7. Please upgrade your browser here.