2026 NBA playoffs: Key questions, ranking first-round series

The 2026 NBA playoffs are underway, with multiple first-round series in progress. Notable developments include the Houston Rockets staying alive with a key performance from Alperen Sengun, the Boston Celtics taking control of their series despite Joel Embiid's return for Philadelphia, and the Los Angeles Lakers suffering a loss that LeBron James attributed to his own turnovers. Minnesota's Anthony Edwards avoided a ligament tear but is set to miss some time with an injury.