Roger Federer and Rafael Nadal will meet today in the semi finals of the 2011 Madrid Masters
The Madrid Masters and WTA Madrid are down to semifinalists: Victoria Azarenka the highest ranked player in the women's draw, Rafael Nadal the highest in men's.
The combined WTA/ATP event in Madrid will feature semifinal matches on Saturday and championship matches on Sunday.
The Saturday matches and their times are listed below with the match of the day looking to be Roger Federer versus Rafael Nadal.
Order of Play - Saturday, May 7th, 2011
MANOLO SANTANA start 11:45am (CET)
Julia Goerges (GER) vs  Victoria Azarenka (BLR) - WTA
Not Before 1:45 PM
 Na Li (CHN) vs  Petra Kvitova (CZE) - WTA
Not Before 4:00 PM
 Rafael Nadal (ESP) vs  Roger Federer (SUI) - ATP
Not Before 7:00 PM
Thomaz Bellucci (BRA) vs  Novak Djokovic (SRB) - ATP
 V Azarenka (BLR) / M Kirilenko (RUS) vs  K Peschke (CZE) / K Srebotnik (SLO) - WTA - DOUBLES FINAL
ARANTXA SANCHEZ VICARIO start 2:00 pm
 B Bryan (USA) / M Bryan (USA) vs J Isner (USA) / S Querrey (USA) - ATP
M Cilic (CRO) / I Ljubicic (CRO) vs  M Llodra (FRA) / N Zimonjic (SRB) - ATP