TK's Picks SF Day 1: Federer, Serena, Venus Williams advance to Aussie Open finals

And then there were four.

There are four men and four women left in the Australian Open. Who will win the titles? You probably shouldn't ask me, I've gotten it wrong on both sides again and again.

I will keep giving it the old college try. So here's my picks for today's semifinals.

Venus d. CoCo in 3: This might be the match of the day. If CoCo keeps playing like she has been, she will win this. However, I don't think she can keep playing at that level. Venus' experience in big matches will come through in the third set.

Serena d. Lucic in 2: Serena will not be stopped, and will not drop a set. Lucic has a great story and it's been a great run but it's over.

Fed d. Stan in 5: I'm a little shaky on this pick, but I'm going with who I want to win. Fed certainly is capable of doing it. Hopefully, he will elevate his game in the semis and finals and get No. 18.

Record: 3-1, 231-94