LeBron James #23 of the Los Angeles Lakers looks on during the game against the Houston Rockets during Round 1 Game 3 of the 2026 NBA Playoffs. Adam Pantozzi/NBAE via Getty Images The NBA Playoffs have lived up to their billing so far, and those interested in making a few DFS plays on Sunday’s quartet of games can do so on Underdog with the welcome offer of Play $5 and get $50 in fantasy bonus entries .  A pair of 2-1 series takes the spotlight, starting with Cavaliers-Raptors at 1 p.m. ET and Spurs-Blazers shortly after on ESPN. The action then shifts to NBC/Peacock at 7 p.m. ET with Celtics vs. 76ers, followed by LeBron James’ Lakers looking to sweep the Rockets in the nightcap.  Underdog is a daily fantasy sports (DFS) leader that offers a wide range of player prop options. It’s a perfect platform for those who know the game and want to earn some bonus entries.…