Crowder is entering the final season of a three-year deal. He is slated to earn $10.1 million this season.
On Sunday, Crowder sent out a post on Twitter in an attempt to explain his side of the dispute.
Phoenix plans to give fourth-year pro Cameron Johnson (26) a bigger role this season, but it isn't known if that is the only tension between the defensive-minded Crowder and the Suns.
When a Phoenix-area writer tweeted Friday about things to watch during training camp, Crowder tweeted "99 WON'T BE THERE!," referencing his jersey number. Crowder later deleted the tweet.
Crowder averaged 9.4 points and 5.3 rebounds in 67 games (all starts) last season, his second with the club.
In his first campaign, the Suns reached the NBA Finals before losing to the Milwaukee Bucks. Crowder averaged 10.1 points and 4.7 rebounds in 60 games (42 starts).
Crowder's next team will be his eighth in 11 NBA seasons. He has career averages of 9.6 points and 4.3 rebounds in 735 games (406 starts) with the Dallas Mavericks, Boston Celtics, Cleveland Cavaliers, Utah Jazz, Memphis Grizzlies, Miami Heat and Suns.
Phoenix opens the regular season against the visiting Dallas Mavericks on October 19th.
