First, there's the softball injuries. These aren't AS bad simply because of the amount of time between now and the start of the regular season. Shortstops Haley Fagan and Kelsey Bogaards both suffered knee injuries during the fall sessions. Bogaards is a senior and was Fagan's backup. She was the starter in 2014.
Head Coach Clint Myers wouldn't specify the injuries, but it's clear they're both going to miss some time. Since he does say that he expects them back early in the season, I would imagine that the injuries, while serious, aren't on the level of an ACL tear.