Chemistry already building on Flyers' checking line

Flyers center Brayden Schenn celebrates his goal with center Scott Laughton.SUNRISE, Fla. - Considering Scott Laughton wasn't a lock to make the Flyers' roster when training camp began, he hasn't had a lot of playing experience with his current linemates, R.J. Umberger and Matt Read.

Heck, Laughton, 21, wasn't a surefire Flyer until almost the eve the 23-man roster was due at the end of camp.

So before Thursday's opener in Tampa, Fla., a 3-2 overtime loss to the Lightning, the trio didn't see much - if any - game action together before the puck dropped at Amalie Arena.

Despite that, the three played arguably the best of the four Flyers forward lines. With the speedy Laughton playing center,…