AnnArbor.com:

Michigan softball center fielder Bree Evans is in serious condition at University of Michigan Hospital after a head-on collision at home plate during an exhibition game with Michigan State on Thursday evening.

Evans, 19, was taken off the field on a stretcher and transported to the hospital by ambulance, according to Michigan sports information director Leah Howard.

Best wishes to her and her family.

Update: Paul's got a tweet with slightly encouraging news:

Glimmer of good news. As they were moving Bree Evans onto the gurney she was able to move her toes. Game called in the bottom of the 4th.

Also, a report from the scene relayed by Craig Ross:

Michigan scored 3 runs in the bottom of the fourth to go up, 3 - 0, but then Bree Evans tried to score from third and slid head first into the MSU catcher, probably hitting her head on the bottom of the catcher's shin guards, something just about the top of the shoe, you could hear the impact. Evans appeared to be knocked out cold, and she lay there, face straight down, for a good 20 minutes, not moving at all. at long last, an ambulance arrived and drove right onto the field, they rolled Evans over, stabilized her neck, put her on a back board, and took her away to the hospital.

Stunning that it took so long for serious help to get there. It would have been the better part of 45 minutes between incident and getting her off loaded at the hospital. Surprised that no emergency vehicle was present near the field, as there is with other sports. The stadium went instantly silent when Evans went down and stayed hushed throughout the rest of the time, until she was taken away. The game was canceled at that point. It was hard to tell whether Evans was out for the entire time, someone in front of us said that the people from the ambulance asked what hurt, and she said neck and back. I certainly didn't hear anything. There seemed to be no bleeding, but there also was absolutely no motion from her for the entire time. Looked like a bad one, but I guess we wait and see.

A potentially serious injury almost happened in the bottom half of the previous inning when the State third baseman hit the fence and flipped over it while chasing a pop up. She was a little shaken up, but nothing like the Evans collision.