LOS ANGELES—Each time Anthony Davis sprawled to the ground after a tough foul or a difficult finish, he felt the cheers of about 7,000 frenzied Los Angeles Lakers fans lifting him back up. The big man can’t wait until a full Staples Center has got his back. In the meantime, his Lakers intend to keep pushing their way past the Phoenix Suns, who pushed back too late—and a bit too zealously—in Game 3. Davis had 34 points and 11 rebounds, LeBron James added 21 points and nine assist and Los Angeles celebrated its first home playoff game in more than eight years with a 109–95 victory over Phoenix on Thursday night. Dennis Schröder added 20 points and the seventh-seeded defending NBA champs took a 2–1 lead with their second straight victory in the first-round series—and the first postseason game for this championship core in front of its home crowd. “It …