After Milan Lucic 's questionable hit on Flyers goon Zac Rinaldo goes after and challenges Bruins forward Nathan Horton to a fight .
Flyers goon Zac Rinaldo has been in eight fights this season .
After Milan Lucic 's questionable hit on Flyers goon Zac Rinaldo , who has been in eight fights this season , goes after and challenges Bruins forward Nathan Horton to a fight .