Erik McKinney ESPN Staff Writer
UCLA and USC added big pieces to their 2018 recruiting classes on Sunday. The Bruins scored a huge quarterback prize in Dorian Thompson-Robinson, the nation's No. 50 overall prospect and No. 3 dual-threat quarterback. Thompson-Robinson would be the first ESPN 300 quarterback signed by UCLA since Josh Rosen in the 2015 class, who finished that year as the No. 50 overall prospect. The Trojans got a commitment from a big name and presence along the defensive line in No. 6 defensive tackle and No. 102 overall prospect Tuli Letuligasenoa. USC signed two ESPN 300 defensive tackles in the 2017 class in Jay Tufele and Marlon Tuipulotu, as the Trojans are making a concerted effort to load up along the defensive line.