LeBron James dribbled out the final 20 seconds while players embraced as the Cavaliers completed a sweep of the Celtics.

It may have been the most congenial 20 seconds of a physical game that left two players with potentially serious injuries and Cleveland wondering if Kevin Love would be ready for the next round.

One thing is certain: Love was angry after Cleveland beat the Celtics in Boston 101-93, a game he left midway through the first quarter Sunday with a dislocated left shoulder.

Kelly Olynyk had his right arm entangled with Love's left — a move Love called "bush league" and intentional — as both went for a loose ball. Love grabbed his left shoulder and ran to his locker room. Boston coach Brad Stevens said deliberately hurting a player is not in Olynyk's personality.

James, who led Cleveland with 27 points, said he's "seen a lot of tie-ups in my day, but that one looked different."

Later, Boston's Jae Crowder was involved in two physical plays. First, he was shoved by Kendrick Perkins, and both drew technical fouls. Then he left the game with a sprained left knee when he was knocked down as J.R. Smith swung his arm backward while jostling for a rebound early in the third.

Smith was ejected and faces possible suspension to start the second round.

"Things got a little chippy," Cleveland's Kyrie Irving said. "Game 4 was the most physical game I have ever played in."

But Boston's Isaiah Thomas didn't think it was anything to complain about.

"We are all men here. We don't need to cry," he said. "It's playoff basketball. You need to move forward."

That's just what the Cavs are doing after winning their first playoff series since 2010, before James left for Miami.

Dallas 121,Houston 109: Monta Ellis scored 31 points, J.J. Barea had 17 points and 13 assists in his first playoff start since boosting Dallas' run to the 2011 championship and the Mavericks avoided elimination with a home victory over the Rockets.

The Rockets, trying to wrap up their first postseason series victory since 2009, missed 17 consecutive shots covering the second and third quarters. The most-prolific three-point shooting team in NBA history in the regular season was 7 of 31 from long range. James Harden scored 24 points, and Dwight Howard had 13.

Washington 125, Toronto 94: The Wizards emphatically completed the first sweep of a seven-game series in club history, getting 23 points from Bradley Beal and 21 points and 11 rebounds from Marcin Gortat to beat the Raptors at home.

Paul Pierce, who repeatedly said he didn't want to have to go back through U.S. Customs for more games in Canada, added 14 points, including a pair of threes in the third quarter as Washington's lead reached 32.

Washington has reached the second round of the playoffs in consecutive seasons for the first time since getting to the NBA Finals in 1979, a year after winning the title.

L.A. Clippers 114, San Antonia 105: The Clippers answered their worst loss in playoff history with one of their most uplifting victories.

Chris Paul had 34 points and seven assists, Blake Griffin added 20 points and 19 rebounds, and the visiting Clippers beat the Spurs to even their first-round series at two games apiece.

Los Angeles coach Doc Rivers said the team's "spirit" was broken during a lopsided Game 3 loss, but he didn't coddle his players during a two-hour film session Saturday.

"Doc pretty much went at all of us," Paul said. They responded by shooting 54 percent from the field after 34 percent Friday.