Whatever magic March seems to bring came screeching to a half Sunday for Michigan State.
The Huskies went on a 23-7 run in the second half and pulled away from the Spartans.
UConn led by 10 with about five minutes to go, but Valentine and Harris hit 3-pointers to bring MSU back in it at 49-45.
The Huskies just proved too much for an MSU offense that couldn't get any points in the paint as UConn executed its game plan defensively.
Michigan State got within two after a Keith Appling driving layup with 2:37 left and had a chance to tie it or take the lead, but turned the ball over.
Shabazz Napier hit a fading two to give the Huskies a 53-49 lead.