Despite being touted as the frontrunners for Kevin Durant's services, the San Antonio Spurs may not be willing to go all in.

Durant reportedly has a wishlist (the Spurs, Rockets and Heat reportedly are on it), and with his expiring contract, he has a bit of leverage to get the deal he wants. But he is 37, not 27, and the threat of him passing on a lucrative two-year extension doesn't hold quite the same weight it once would.

The Spurs reportedly did not respond well to the Suns originally asking for reigning Rookie of the Year Stephon Castle and/or the No. 2 pick in the upcoming NBA draft in their trade talks for Phoenix star Kevin Durant, according to former Spurs executive Kirk Goldsberry.