Programming note: Giants-Dodgers coverage starts tonight at 7pm on NBC Bay Area.
The Giants and Dodgers are bitter rivals.
But on Friday afternoon, Giants third baseman Matt Duffy and Dodgers catcher A.J. Ellis teamed up to support a cause.
[PAVLOVIC: With Romo going on DL, Giants will call up Law]
At 12:35pm, Ellis sent out the following tweet:
"Launching the #nbsparkstartfc in #la. @mm_duffy, I'm tagging you in to get #SF moving! @nbgivesback @playworks"
The message also had an accompanying video with Ellis and a large group of kids chanting "LA! LA! LA! LA!."
At 1:52pm, Duffy responded with:
"Challenge accepted (emoji face)"
The hashtag stands for "New Balance spark start fitness challenge."
According to New Balance, its mission is "to improve the health, well-being and self-esteem of children through movement."
Challenge accepted https://t.co/jb6m3nWN2s— Matt Duffy (@mm_duffy) April 15, 2016