Colin Kaepernick vs. Sio Moore 'Beef' Escalates [WATCH]: Raiders Star Deems 49ers Quarterback 'B*tch A$$ Motherf*cker' Amid 'Coming For You' Taunt & Instagram 'Chump' Diss, Amuses Twitter

So, this "feud" between San Francisco 49ers quarterback Colin Kaepernick and Oakland Raiders linebacker Sio Moore just got a little more interesting...

The two football stars faced-off on Sunday (December 7) - the Raiders ultimately proved victorious with a score of 24-13.

But apparently things got more heated off the field, when Kaepernick and Moore got into a verbal confrontation during half time.

According to the infamous gossip webloid TMZ, the 24-year-old U. Conn graduate made a snide comment towards 27-year-old Kaepernick while they were running back to the locker rooms. And the NFL hottie responded with this taunt - "I'm coming for you."

That really riled Moore up. He apparently fired-back by deeming Kaepernick a "B*tch a$$ mothef*cker."

Eventually 49ers teammate Tony Jerod-Eddie joins-in on the bashing, allegedly yelling, "I'll fire your a$$ up."

Well, that definitely fired Moore up - the Raiders totally dominated the second half of the game.

The baller then posted this heated message on Instagram following the exchange:

Woah. The "chump" diss was shared by fans more than 19,300 times on the popular social networking site. And Twitter's having a ball: @JustBlogBaby: "Sorry, but after Colin Kaepernick acted like a total tool for the past 10 days leading up to that loss I think Sio Moore is a truth teller." @SamuelYLam: "Wait, wait. Sio Moore called Colin Kaepernick a chump on Instagram? The same Sio Moore who did this?"   

@Young_E510: "Sio Moore would lay the f*ck out of Colin kaepernick. Haha stop you stupid squid."

@AbelitoGomez: "Im glad I'm not the only one tht recognizes @Kaepernick7 blows #BattleOfTheBay."

@MaddenG0d24: "@MrOakTown55 tell that douchebag @Kaepernick7 whats up! Man I hope he gets a clean hit on him soon. #Raidersvs49ers #BattleOfTheBay."

Check out the initial argument that started it all:

Kaepernick remains mum about the entire ordeal on Instagram (so far).