My season is over. (Mel Evans/AP)

Mason scored a season-high 19 points and helped guide the Wizards to a 99-89 win over the New Orleans Hornets — but he also suffered an avulsion fracture in his left index finger. He played the next 18 games despite the injury, wearing tape over his injured finger and scoring in double digits eight times, but the pain suddenly became too unbearable.

After scoring just three points in a loss to Cleveland on Saturday, Mason elected to have surgery to and effectively end his season. Mason said he would have the procedure on Monday in New York, while the Wizards plan to waive the eight-year veteran shooting guard and use his roster spot to add another back-court player for the final six games of the season.

“I didn’t want anyone to hit it so I kept it quiet,” Mason said in a text message. “Plus I wanted to keep playing thru it to show young guys toughness and leadership.”

Back with his hometown Wizards after spending two seasons with the team from 2006 to ‘08, Mason had to wait a while before settling into the rotation.

When he did, Mason regained his shooting touch and finished averaging 5.5 points and 1.3 rebounds while shooting 38.3 percent (59-154) from three-point range in 52 games. Mason made a season-high five three-pointers last week in a win over the Charlotte Bobcats.

The Wizards (14-46) also signed forward James Singleton for the remainder of the season. Singleton signed a 10-day contract on April 5 and averaged 9.8 points and 7.7 rebounds in six games for the team.