LAWRENCE, Kan. — Kansas’ men’s basketball team secured at least a share of its 16th Big 12 regular-season title in the last 18 seasons by defeating Texas, 70-63, in an overtime thriller at Allen Fieldhouse on Saturday. David McCormack scored 22 points and grabbed 10 rebounds (he was 10 of 10 from the line) and Jalen Wilson added 17 points with 13 rebounds as the No. 6 Jayhawks (25-6, 14-4) claimed their 39th straight victory on Senior Day, a long stretch of victories in the regular-season finale that started during the 1983-84 season. The KU victory came on a day senior Ochai Agbaji scored his…