that according to the former president of the american psychological association temple professor frank farly. >> yeah, sure we have been a under dog but watch us now and we're ready to role. so we can, kind of remotivate your followers. >> reporter: beside those followers farly says fact that new england is predict to win could negatively effect how they play. >> to be defeated by the under doggies exceptionally humiliateding and so therefore that could have a big impact on them. it could make them nervous. >> we will get revenge, tom brady can't win them all. >> reporter: professor farly says eagles players embracing under dog mentality says rall ies the fan base and makes each and every win just so much more better. can you imagine two weeks now against tom brady. >> take it easy but you are right. >> very interesting look at all that, greg, thanks, buddy appreciate it. >> everybody showing their love forbidder including claude giroux he tweet today great to see eagles getting it done. fly eagles fly. even the four legged eagles, yeah, they are hyped. eagles fans rudy is all ready to go. r