BOSTON — Boston Red Sox first baseman Willson Contreras was ejected for a second straight game Tuesday after throwing his helmet toward Washington Nationals pitcher Cade Cavalli during a heated exchange that ended with the benches clearing and multiple ejections.

Cavalli struck out Contreras looking on a full-count pitch in the top of the fourth of what eventually became an 8-1 victory by the Nationals. The 27-year-old right-hander then shouted at Contreras as Contreras made his way back to the Boston dugout.

Red Sox manager Chad Tracy said he heard Cavalli yell, “Sit down, boy” after striking out Contreras.

Asked what his specific words to Contreras were, Cavalli told reporters, “I don’t know. I just lose my head in it. I’m competitive. I just told him to sit down.”

The term “boy” has a racially charged history in the U.S. Contreras, who is Venezuelan, demurred when asked if he felt there was a racial component to Cavalli’s word choice.

“To be honest, I don’t know,” Contreras said, later adding he plans to “let MLB handle that.”

Contreras, who hit a three-run homer off Washington’s Miles Mikolas on Monday and celebrated with a massive bat flip that he later apologized for, then approached Cavalli on the mound. The two jawed at each other as both dugouts emptied.

“He struck me on a good pitch, I was walking back to the dugout, and then he did what did, and the rest was history,” Contreras told reporters afterward, later adding, “He was like, instigating, and I snapped.”

Boston catcher Carlos Narvaez tried to hold back Contreras, but Contreras broke loose long enough to leap and throw his batting helmet in Cavalli’s direction.

Things settled down quickly after that, though the brief dustup ended with Contreras, Boston interim manager Chad Tracy, Boston outfielder Nate Eaton and Mikolas being ejected.

Cavalli pointed to an incident at the end of the top of the first when Contreras nearly ran into the pitcher as both exited the field as the spark that set things in motion.

“He’s just been doing stuff,” Cavalli said of Contreras. “In the first inning, he just runs past me and brushes me. It’s just something you don’t do in baseball. I think he knows that. I didn’t say anything. I just looked at him. And a few words were said after the strikeout. It’s part of the game. And he’s going to let everybody run out there and try and do whatever he does, throw a helmet and get himself tossed.”

Cavalli stayed in the game and gave up one run and one hit with 13 strikeouts over seven innings.

“After everything that happened, the people that they chose that were going to leave the game, I just felt like the other pitcher should have been one of them too,” Tracy said. “That was my biggest complaint.”

The early exit was the second in as many nights for Contreras, the first time that has happened to a Red Sox player in the club’s 126-year history. The 34-year-old — who acknowledged he was having a difficult time while his native country tries to recover from a pair of devastating earthquakes last week — was ejected in the second inning Monday for mimicking an appeal call after striking out on a check swing.

“I feel like everything is against me right now,” Contreras said. “I got ejected last night from nothing. I got ejected today even though I was walking back to the dugout.”

The Red Sox said starter Connelly Early left the game after the fourth inning because of left elbow discomfort. He had five strikeouts, gave up three hits and walked two.

Information from The Associated Press was used in this report