BREAKING Dave Hakstol Switches Up Defensive Pairings.

The Philadelphia Flyers dominated during Game 4, the boos came out and fans aren't happy. With the series on the line, it looks like Flyers head coach Dave Hakstol is set to make some lineup changes. To start, Hakstol has decided to switch up his blueline and finally insert Robert Hagg into the lineup. However, it looks like Hakstol has decided to sacrifice Travis Sanheim. Hagg was paired with Gostisbehere, Provorov with MacDonald and... Manning with Gudas. On the offensive side of things Giroux skated with Filppula and Voracek, Weal with Laughton and Raffl while Patrick skated in between Lindblom and Konecny. Leaving Simmonds to skate with Read and Lehtera. Fans have been scratching their heads all morning, good news from practice is that Sean Couturier skated and stated himself he's not officially ruled out for Game 5. Here's a look at Friday's probable lineup for Game 5:FORWARDSGiroux - Filppula - VoracekLindblom - Patrick - KonecnyRead - Lehtera - SimmondsWeal - Laughton - RafflDEFENSIVE PAIRINGSProvorov - MacDonald Hagg - GostisbehereManning - Gudas