The 2012 Big East Tournament has finally reached the semifinals after slogging through three days of games since Tuesday. Three of the top four seeds will be in the semifinals -- the exception being the No. 2 Marquette Golden Eagles. The No. 7 Louisville Cardinals upset Marquette on Thursday night, 84-71.

The No. 3 Notre Dame Fighting Irish needed overtime to defeat the South Florida Bulls, 57-53. Notre Dame hit three free throws over the final 38 seconds of regulation to tie the game at 45 while the Bulls missed a couple of shots from the field and free throws. Overtime was just as daunting as those final seconds of regulation, but the Bulls failed to do anything positive after Toarlyn Fitzpatrick's three-pointer made it a 54-53 game.

Click here for the bracket, and below is the Day 4 schedule for the 2012 Big East Tournament (all times Eastern):

No. 1 Syracuse vs. No. 4 Cincinnati, 7:00 p.m., ESPN
No. 3 Notre Dame vs. No. 7 Louisville, 9:00 p.m., ESPN

For updates, stay tuned to SB Nation Chicago. For more on Big East basketball, visit the SB Nation blog Big East Coast Bias. For more news and analysis from the day in NCAA hoops, visit SB Nation's college basketball hub.