(Portland, OR) -- The Portland Trail Blazers are announcing their roster for the upcoming Las Vegas Summer League. Newly acquired forward Noah Vonleh [[ von-LAY ]] and rookie guard Pat Connaughton are headed to Sin City. Point guard Tim Frazier and third-year wing Allen Crabbe are also on the roster. Meyers Leonard will make his fourth straight summer appearance. The Blazers open their schedule on Saturday against Boston.