Per Zach Lowe of ESPN:
Play hardball with Lowry, and he might leave — just like Al Horford bolted Atlanta after the Hawks haggled over that dicey fifth season. Lowry’s a prickly, proud dude, and he will have suitors — including his hometown Sixers. He signed what turned out to be a wildly below-market contract in 2014, and he (justifiably) wants to be paid as a franchise guy. He led the sad-sack Raptors out of the sullen Andrea Bargnani era, to places where they had never been.