Australian Open 2012 TV Schedule: Matches You Must Watch on Day 11

Day 11 of the Australia Open will see the semifinals get well under way, and perhaps most importantly, it's Australia Day.

Few things are more exciting than being in Melbourne Park on Australia Day, with entertainment, fireworks, exhibition matches and a whole lot more.  And that is before you even mention the tennis.

Coverage will once again go through the night with ESPN3 covering the Margaret Court Arena (from 7 p.m. ET) and on ESPN2 coverage starts a little later at 9 p.m. ET.

But don't worry about missing the first couple of hours, you can tune in to the Tennis Channel from 7 p.m. ET.

Victoria Azarenka (3) vs. Kim Clijsters (11)

Kim Clijsters could be making her final Australian Open appearance ever tonight.  The Belgian, who is retiring (again) at the end of 2012, goes up against Victoria Azarenka of Belarus in the first of the women's semifinals.

Clijsters will be looking to send home another of the top seeds tonight, adding to her impressive victory over Caroline Wozniacki.

Clijsters might be seeded 11th, but she will be out to prove to her younger peers that she still has what it takes.

This is the first match you need to watch out for tonight.

Rafael Nadal (2) vs. Roger Federer (3)

The Australian Open has provided us with the ultimate matchup.  It seems however good Djokovic gets, it is still Roger Federer vs. Rafael Nadal the crowds want to see.  What better way to celebrate Australia Day then watching the two greatest players of the modern game squaring off.

The two greats will battle it out tonight in the first semifinal on the men's side of the draw.

Federer will probably go in as a slight favourite considering his excellent form so far, but anything can happen when these two meet.  Without any doubt, this will be the match to watch on Day 11 of the Australian Open.

Make sure you don't miss it.