The game marked the return of Triano, the former Raptors coach and Canadian, who was named the Suns' interim head coach after Earl Watson was sacked just three games into the season.
Booker left the game with 19 points, eight assists and five rebounds.
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They were threatened the most when the Sixers cut the lead down to five with under five minutes left in the fourth quarter, but the Suns continued to make shots and answer back. Preliminary tests showed Booker strained his left adductor while playing defense with 2:40 left in the fourth quarter. But, as long as they stay healthy and make it to the postseason as a No. 3 or No. 4 seed, they'll have a shot to push either of those teams deep into a series.
Suns forward TJ Warren was assessed two technical fouls with 7:58 to play in the third quarter to earn ejection from the game.
While the Sixers would get it close in the fourth, Booker decided he'd had enough with his team up 11 and a little over three minutes remaining. The Suns had seven turnovers in the quarter and the Raptors had none.
The Raptors led by as many as 17 points before finishing the first quarter with a 36-23 lead with Lowry scoring 13.
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The Raptors led 55-46 at halftime. Greg Monroe started at center Tuesday and Alex Len was backup.
"I'm sure they'll have to do an MRI or something to make sure we take care of him the right way", Suns interim coach Jay Triano said.
The Raptors play their next four games on the road, starting Friday in Memphis.
The Suns will return home on Thursday to face the Washington Wizards at Talking Stick Resort Arena.
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