For LeBron, another Cavs' sweep is within reach

LeBron James doesn't prolong the inevitable.The last seven times that James' teams have had a 3-0 lead in a playoff series, the matchup has ended in the most humane fashion — a sweep. He gets a chance at another Sunday, when Cleveland can oust Toronto and advance to the Eastern Conference finals.That's one of three Game 4s on Sunday's NBA playoff slate: Boston and Washington continue their bruising series with the Celtics leading that East semifinal matchup 2-1, and San Antonio — whi