It wasn’t a great weekend for peace and harmony in major league dugouts, with spats and squabbles bursting into the open across the country.

The most replayed of them—and the one with the most lasting repercussions—blew through Chicago’s south side, when Cubs pitcher Carlos Zambrano, at risk of implosion even on a good day, unleashed a barrage of venom at the world, and at Cubs first baseman Derrek Lee, in that order.

Zambrano, only recently returned to the starting rotation following an unremarkable demotion to the bullpen, was on a short leash, and he knew it. The first batter he faced, White Sox leadoff hitter Juan Pierre, smoked a ball down the first base line, possibly playable by Lee although it was ruled a clean hit, and went for a double. The White Sox followed with another double, a single and a three-run homer by Carlos Quentin. By the end of the frame, it was 4-0.

Zambrano recorded the final out of the inning while covering first base, stomping down angrily on the bag. He started screaming before he even reached the dugout, and rampaged down the length of the bench until reaching Lee, at which point he tore into him at top volume. (Watch it here.)

(If nothing else, Zambrano’s no coward. The 6-foot-5, 245 lb. Lee is among the most physically intimidating men on the team.)

Lee didn’t back down, but neither did he seek to escalate the confrontation. Players quickly came between the two, at which point Zambrano punched a container holding paper cups, and was summarily dismissed by manager Lou Piniella. He was pulled from the game, thrown out of the stadium, and eventually suspended from the team.

(The fact that it might all have been premeditated doesn’t seem to carry much weight with the Cubs.)

This was due partly to the clearly disruptive nature of Zambrano’s outburst, and also to a pretty easy deduction that it wasn’t the first time something like this had happened. He has a history of failing to be “the best teammate,” said Cubs GM Jim Hendry in the Chicago Tribune, including other public outbursts.

In 2007, Zambrano pitched a similar dugout fit after Cubs catcher Michael Barrett’s throwing error helped lead to a five-run inning by the Braves. Where Lee was content to take the high road, however, Barrett followed Zambrano into the clubhouse to fight. How many blows Barrett managed to get in is unknown; he was, however, the only one hospitalized, to have his split lip stitched up.

This incident led to a valuable unwritten rule concerning baseball hierarchy. When it comes to intra-team squabbles, the bottom line rarely concerns right and wrong; it’s all about value to the roster. Although a public reconciliation was eventually staged, Zambrano—clearly the better player—eventually won the war when Barrett was traded to San Diego three weeks later.

What these situations have in common, aside from Zambrano, is frustrating streaks of losing.

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Also last weekend but across the country, in St. Petersburg, Fla., more anger flowed following a play not made by a defender. Like the Zambrano affair, this one was also spurred by frustration over a losing streak.

Whereas Zambrano’s tirade helped establish his credentials as a nut job, Tampa Bay third baseman Evan Longoria was perceived to be taking a new level of responsibility in his role as a team leader.

It started when Tampa Bay outfielder B.J. Upton lazed after a ball hit to the wall—nothing as blatant as Hanley Ramirez‘s loaf earlier this season, but still plenty obvious—allowing Arizona’s Rusty Ryal to reach third base on what would have otherwise likely been a double.

Upton, having already earned a reputation for insubordination and something less than all-out play, was met by Longoria upon reaching the dugout and told in no uncertain terms that his example was detrimental to a winning atmosphere. Upton did not respond well, yelling and pointing at Longoria before being pulled away. (Watch it here.)

Longoria turned his back to the situation, and, to judge by the players’ post-game comments, it more or less ended there (although Upton was benched to start the following game). [Update: Upton was benched at the start of the following game as well. Rays manager Joe Maddon insisted that it had nothing to do with his behavior, but instead with a balky quadriceps. Then again, the Code dictates that’s precisely the type of thing Maddon is supposed to say, even if Upton was indeed benched to send a message.)

“B.J.’s an emotional player and when we’re not playing up to our potential, things get multiplied,” Longoria said in the St. Petersburg Times. “I don’t think it got that out of hand to be honest with you. Obviously it looks a lot worse from the outside. But what’s done is done, and we move on.”

These types of incidents, minus Zambrano’s particular brand of mania, aren’t uncommon in the big leagues—it’s just that they don’t ordinarily happen out in the open.

“It’s stuff about playing the game hard, playing it to win,” said 1993 Cy Young Award winner Jack McDowell. “I wasn’t afraid to say stuff like that to teammates; it was usually pretty necessary.”

The list of in-the-open fights between teammates is a long one: Bonds-Kent in 2002; Sutton-Garvey in 1978; Jackson-Martin in ’77 . . . It’s a fertile topic, and serves as only a tiny percentage of teammate spats over that time, most of which never come to light. Teams, in fact, will go to great lengths to keep details away from the media. From The Baseball Codes:

Take the dramatic hotel-room brawl between Davey Johnson, then a star second baseman for the Braves, and his manager, Hall of Famer Eddie Matthews, in 1973. The way Johnson tells it, after an initial verbal disagreement the manager invited him into his room and challenged him to a fight. Johnson, reluctant at first, changed his mind when Matthews wound up for a roundhouse punch, then knocked the older man down. Matthews charged back, and as the sounds of the scrape flooded the hallway, players converged on the scene. In the process of breaking things up, several peacemakers were soon bearing welts of their own.

“The next day at the ballpark we looked like we had just returned from the Revolutionary War,” wrote Tom House (a member of the team, who, true to the code of silence, left all names out of his published account). “Everybody had at least one black eye, puffed-up lips, scraped elbows and sore hands. It had been a real knockdown battle.”

This was something that couldn’t be hidden from the press. Matthews called the team together, and as a unit they came up with a story about a game that got carried away, in which guys took good-natured beatings. Flimsy? Maybe. Accepted? Absolutely.

“You can ask Hank Aaron and others on that team,” Johnson said, laughing. “Eddie said his biggest regret [in his baseball career] was not having it out with me again. That one never got out. It never made the papers.”

Ultimately, one hopes that these sort of confrontations allow for the airing of disparate viewpoints, and ultimately serve to bring teams closer together. At the very least, one hopes they don’t lead to physical injury.

That’s not always the case.

In the Oakland clubhouse in 1974, a stark naked Reggie Jackson responded to a game’s worth of needling from teammate Billy North by instigating a vicious clubhouse brawl.

Vida Blue was the first teammate to attempt to break it up; when it became clear he needed help, catcher Ray Fosse entered the fray—and for his trouble ended up with two crushed vertebra in his neck when he was thrown against a locker. The catcher wouldn’t play again for almost three months and batted just .185 upon his return.

When North and Jackson went after each other again just moments later, their teammates failed even to acknowledge it. (“I had a damn good hand—a once-in-a-month hand—and I was going to stay with it,” said Ken Holtzman of his bridge game. “I didn’t really give a damn if Billy and Reggie were kicking the crap out of each other for half an hour.”)

Bemoan your team all you want, Cubs fans. At least your team is proactive.

– Jason