'Ice Bucket Challenge' goes viral

The "Ice Bucket Challenge" has gone viral among Boston athletes, and it's all to raise awareness for ALS and support one of their own -- Pete Frates, the former Boston College baseball captain who is battling the disease. The 29-year-old Frates can no longer speak and is confined to a wheelchair.

Here's how the challenge works. If you're issued the challenge, you film yourself dumping a bucket of ice over your head, and you then issue the same public challenge to others, who have 24 hours to complete the task.

Videos of Boston athletes completing the challenge have popped up all over the Internet. Doug Flutie did it. So did Bruins forward Greg Campbell, who challenged forward Brad Marchand, who challenged defenseman Torey Krug, who challenged Milan Lucic, who challenged Dennis Seidenberg:

The Patriots are in on it, too. Receiver Julian Edelman did it and challenged teammates Rob Gronkowski, Danny Amendola and even Tom Brady to do the same (we’re still waiting for their responses):

Post by Julian Edelman.

Jason Varitek and his wife, Catherine, did it, then challenged Clay Buchholz's wife, Tim Wakefield and NESN's Tom Caron:

Even the mascots are involved. Lucky doused the Bruins' Blades (after being challenged by Baldwin, the Boston College mascot) and then challenged Wally The Green Monster and Pat Patriot:

BC alum and Atlanta Falcons quarterback Matt Ryan also accepted the challenge.

Stay tuned in the coming days to see who else steps up.

Update: Update: Celtics captain Rajon Rondo joined the Ice Bucket Challenge::

Post by Rajon Rondo.

In his Instagram post, Rondo challenged teammates Brandon Bass, Phil Pressey and James Young to complete the challenge.