Wisner attended DeSoto High School located in DeSoto, Texas. In Wisner's senior season with DeSoto, he rushed for 846 yards and six touchdowns on 125 carries, while also hauling in 35 receptions for 466 yards and four touchdowns, as he helped DeSoto to a state championship.[1] Coming out of high school, Wisner was rated as a four-star recruit, where he held offers from schools such as Oklahoma, Texas, and Texas A&M.[2][3] Ultimately, Wisner committed to play college football for the Texas Longhorns.[4][5]