Poolers and fans of sports predictions are real enthusiasts, and obviously, Tommy Pham and Joc Pederson belong to this category. Backed by a history of fantasy football, the two opponents came to blows on Friday, before a match between the San Francisco Giants and the Cincinnati Reds.

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The incident took place during the warm-up session at Great American Ball Park. A scrum broke out in a corner of the field, to everyone's surprise.

Questioned after the meeting by the sports site The Athletic, Pederson told his version of the facts. "He came up to me and said 'remember last year? I said “fantasy football?” And he said “yes”.

It was then that the Giants player was hit with a slap on the left cheek. More surprised than angry, Pederson would not have reacted, while the players of both teams ran in their direction.

Strangely, this would be the first in-person discussion between Pham and Pederson, according to the latter. The Cincinnati outfielder reportedly accused the other of cheating, which sparked an argument in the fantasy football group, which reportedly includes players from across the baseball league.

"It's over, as far as I'm concerned. I don't think I will talk to him. I don't think he wants to talk to me too, I don't know," Pederson admitted.

At the request of the Giants, Pham did not play the game, which was still won 5-1 by the Reds. Major League Baseball has launched an investigation to shed light on this story.