Here's how it all works: After being challenged via social media, one has 24 hours to donate to the ALS Association or dump a bucket of ice water over their head ... or ideally both. That person then challenges three others to do the same.
Take a look below to see which Giants accepted the challenge and stay tuned to see who steps up next!
ANDRE WILLIAMS, MATHIAS KIWANUKA & MARK HERZLICH
TOM COUGHLIN, JERRY REESE & ELI MANNING
GIANTS OWNER JOHN MARA