There are some unwritten rules in baseball that players respect and have to observe because it is part of some kind of "code of honor" that preserves the values of the game, and also encourages respect for the opposite team.
On April 22nd, when the Tampa Bay Rays played against the Minnesota Twins at the Tropicana Field, Carlos Gomez hit a two-run walk-off homer to give the host the victory against the Twins; but his reaction after hitting the dinger it may have broken one of baseball's unwritten codes.
Gomez euphorically celebrated his homer, which by baseball codes it's prohibited to over exaggerate celebration which is seen as disrespectful. However, the Twins didn't complain about it, so he could go on with his celebration.
This was not seen with good eyes for a certain sector of baseball's fanbase, but Gómez defended himself as he spoke with Marc Tompkin of the Tampa Bay Times:
If enjoying and having fun in baseball is bad, I'm guilty. It's something I know a lot of people are talking good about this, that baseball needs more of that. And some people say it's not good. I was not trying to disrespect anybody. I was not looking to the other side, not looking at the ball. I was looking at my guys