No. 19 seed Madison Keys of the U.S. takes on No. 2 seed Iga Swiatek of Poland in a women's semifinal match on Thursday. Check out all the info.

Not that Iga Swiatek needs the help during her dominant run through the Australian Open so far, but she did get the benefit of a no-call when she failed to reach a ball hit by her opponent Emma Navarro before it bounced twice.

Iga Swiatek doesn’t need any help. The women’s top seed at the Australian Open was on the right end of a missed call in her 6-1, 6-2 quarterfinal win over American Emma Navarro on Tuesday. With Navarro desperately trying to fight her way back into the match, she hit a drop shot that Swiatek scrambled to retrieve and was ruled to have done so.