The Tribune had some more information:
http://www.sltrib.com/blogs/5086692-155/story.htmlAccording to two sources with direct knowledge of the situation said Seljaas, from Bountiful, returned home Monday night because the shoulder he injured as a freshman at BYU last winter continues to cause pain and discomfort.
Seljaas is scheduled to meet with two or three doctors on Tuesday [yesterday] and more will be known after their evaluations.
If minor surgery is required, he could possibly return to Iowa and finish out his mission.
If major surgery is needed, one that requires 5-6 months of rehabilitation, the 6-foot-7 sophomore-to-be could opt to remain in Utah, forego the remainder of his mission, and join the team in October."All options are on the table at this point," one source said. "I couldn't even give you odds about what will happen next."
Seljaas was reportedly enjoying his mission and "having a really good experience in the field," and would not have returned to Utah if the shoulder had not been bothering him.