Ajay Mitchell scored 18 of his 24 points in the second half and the Oklahoma City Thunder dominated the final 24 minutes en route to a convincing 131-108 victory over the Los Angeles Lakers in Game 3 of their Western Conference second-round series on Saturday night.Shai Gilgeous-Alexander had 23 points and nine assists as the defending champion Thunder took a commanding 3-0 series lead and improved to 7-0 this postseason. Chet Holmgren had 18 points and nine rebounds, Cason Wallace added 16 points off the bench and Mitchell also had 10 assists.“The confidence I got from my teammates and our coaching staff has been amazing from Day 1,” Mitchell said.