Hearing the man's aren't willing to go that high.
I think Eric Pincus is the source of this rumor, which has had a game of telephone played with it.
Several competing executives (assuming Turner's injury isn't severe) believe the Mavericks are the favorite for Turner with Dwight Powell and one of Dorian Finney-Smith or Jalen Brunson. Dallas' willingness to part with Finney-Smith or Brunson may come down to each player's free-agent expectations.
Brunson faces a similar market, but the guard is believed by many to be seeking near a four-year, $80 million contract. That is a large number, especially for a player that several competing executives think is too big of a target defensively in the playoffs.
Pincus is someone with decent sources.
I don't think these executives are correct with this. Brunson is small and doesn't have great speed but he has a good build. He has a strong stocky build similar to Derek Fisher. He does better on switches onto bigger players than most other small guards.
He has more problem with speedster guards than he does on switches (both relative to his peers at the PG position).
This makes him less vulnerable to being attacked in the playoffs by opponents than most other small guards and leaves him closer to the middle of the pack defensively.