As play-in tournament games wrap up on April 16, Portland Trail Blazers' upset victory over Phoenix Suns clinches the West's No. 7 seed against San Antonio Spurs, while Charlotte Hornets' overtime win over Miami Heat advances them toward East No. 8. First-round series tip off April 18, with top seeds Oklahoma City Thunder (64-18) and Detroit Pistons (60-22) enjoying home-court advantage and rest edges in best-of-seven matchups. Los Angeles Lakers enter their clash with Houston Rockets hampered by indefinite absences of Luka Dončić and Austin Reaves, who combined for heavy scoring loads. Closely contested tilts like New York Knicks vs. Atlanta Hawks and Cleveland Cavaliers vs. Toronto Raptors hinge on recent form, head-to-head trends, and injury updates from official reports.