He was pretty much unbeatable at #3. If Ohio State didn't suck on the big stage and had played UVA in the final, Frank would've outlasted Kobelt.
This injury could've been a lot worse (ACL or MCL). A meniscal tear is not great, but with proper rehab, a full recovery is almost guaranteed, especially with someone as young as Mitchell. With a meniscal repair (normally a 4-ish month recovery) the torn piece of cartilage is removed and the edges and area around the tear are smoothed out. He'll be in a brace for the next 4-6 weeks unable to bear weight. He'll be doing physical therapy throughout the recovery process to help strengthen all areas of the knee.
In the end, this type of injury should have no long-lasting ramifications. Mitchell should return to full strength and be ready for the ITA Team Indoors in February. If anyone wants to discount a guy like Frank already, you will end up regretting it come next year.