Sensational handicapper Matt Rivers has a free NBA winner tonight. From BetUs Sportsbook Boston Celtics minus 7 at Philadelphia.     It's a decent amount of lumber to lay on the road for sure and especially to a decent enough Philadelphia squad but right now the Celtics are looking ridiculously focused in the great 4-0 start both SU and ATS. Doc Rivers really has KG and the boys playing at a high level and a team that is very very deep, even with Glenn Davis out injured.  ...