Dennis Marshall, father of Sixers reserve point guard Kendall Marshall, is apologizing on Monday after sending out a series of tweets Saturday evening criticizing the team.

The now-deleted tweets (which can be seen here) included one where Marshall alleged racism in sports, and also called out shooting guard Nik Stauskas for his poor play. They were sent out during the course of Philadelphia's 130-99 loss to the Los Angeles Clippers on Jan. 2.

"How are you a 'shooter' and shooting 27% from three?" Marshall wrote. "Can't guard but play a lot. What do you think the reason is?"

The elder Marshall ended up deleting his Twitter account.

Dennis Marshall contacted Liberty Ballers Monday after reaching out to general manager Sam Hinkie to apologize for what he wrote.

"I apologize to all associated with the Sixers," he wrote. "I am ashamed and embarrassed by my actions. I have sent a letter of apology to the Sixers."

Philadelphia returns to action Monday evening against the Minnesota Timberwolves.