Texas’ 2018 recruiting class is now three members deep heading into the spring game. Four-star quarterback Casey Thompson announced Thursday in his high school gymnasium that he’ll sign with the Longhorns. Thompson, the son of former Oklahoma quarterback Charles Thompson and the younger brother of former Sooners receiver Kendal Thompson, joins wide receiver Justin Watkins and linebacker Byron Hobbs as Texas’ commitments for the 2018 class. In his Southmoore, Okla. high school career, Thompson has amassed more than 8,000 yards of total offense and scored 109 touchdowns. He’s ranked as the No. 7 dual-threat quarterback in the nation and is a 247Sports composite national top 160 player.