No, this didn't happen yesterday, and yes, the taker of this clip shot it vertically (a.k.a. YouTube's Kryptonite), but it doesn't matter. Because this is just beautiful.
From the same Dodgers-Giants game this past weekend that included a fan brawl comes this, a clip of L.A. Dodgers outfielder Matt Kemp signing a baseball and then shedding his Dodgers hat, jersey, and cleats for a fan who, according to the YouTube uploader, is "fighting a tough battle."
According to the uploader, the third-base coach is the one who asked Kemp to come over after the game, which he did, and then some.
It's a short, simple clip, but it's always important to remember that occasionally these athletes, often perceived as in-game heroes, can actually mimic that mystique once the games have ended.