Marshall’s decision to opt out of December’s Independence Bowl against Army is turning out to be a costly one.The Sun Belt Conference issued the school a $100,000 fine for not participating in the Dec. 28 contest, which Marshall said was due to a loss of more than 25 players to the transfer portal.The exodus was in part due to the departure of head coach Charles Huff, who took the head coaching job at Southern Miss after the Thundering Herd won the Sun Belt title with a 31-3 win over Louisiana.In a statement released Friday, the conference expressed some understanding of Marshall’s decision but ultimately called the move “detrimental” to the Sun Belt and others affected by the decision.”While the conference acknowledges the medical model and best practice guidance adhered to by Marshall, as well as their fundamental concern for the health and safety of the remaining eligible student-athletes to compete in a safe and viable manner,” the statement said, “the nature and timing of this decision was detrimental to the Sun Belt Conference and its membership, to Army, the Radiance Technologies Independence Bowl, the American Athletic Conference and ESPN.”