It's root, root, root for the home team, as they say, and so Boston native Evans has taken up his signature red, white and blue in support of the New England Patriots while Pratt, who hails from Seattle, cheers on the Seattle Seahawks.
Both football fans and friends, Evans and Pratt made very public and very charitable bet: If the Patriots win, Pratt will don a Patriots jersey and make an appearance at Christopher's Haven, a non-profit organization that provides support housing for families whose children are receiving outpatient pediatric cancer treatments in Boston. If the Seahawks win, Evans will show up to Seattle Children's Hospital as Captain America, brandishing a 12th Man flag.
Check out their Twitter exchange below.
Well, well, well @prattprattpratt, looks like our teams are going into battle. For the next 2 weeks, you are not my friend, you are my enemy— Chris Evans (@ChrisEvans) January 19, 2015
Regardless of who wins the big game, fans and both charitable causes are the real winners here.