INDIANAPOLIS - The Indiana Pacers will send point guard Anthony Johnson to the Dallas Mavericks for veteran floor leader Darrell Armstrong and two young players, Armstrong's agent said Sunday.

Armstrong, forward Josh Powell and swingman Rawle Marshall are headed to the Pacers in a sign-and-trade deal that can't be completed until the NBA office opens Monday.

Johnson gives the Mavericks a pass-first point guard to complement starters Jason Terry and Devin Harris, both of whom are more scorers than distributors. Johnson also is taller than Armstrong, and a strong defender with solid playoff experience.

Dallas had been considering signing Chucky Atkins to fill the same role. By getting Johnson in a trade, the Mavs instead can spend their remaining salary cap money on a backup swingman and a third-string power forward, the final two items on their offseason want list.

The 31-year-old Johnson averaged 20 points and 5.2 assists in six playoff games last season. He'll make around $2.6 million this season and $2.8 million the following year.

Johnson had been a backup for most of his career, but started 89 regular-season games the past two years while the Pacers fought through injuries and suspensions. He scored 40 points in his last game with Indiana, a loss to New Jersey in the first round of the Eastern Conference playoffs.

The 38-year-old Armstrong is a 12-year veteran with career averages of 10.1 points and 4.4 assists. He spent most of his career with Orlando before brief stints in New Orleans and Dallas.

Armstrong played much of last season with a torn rotator cuff. His biggest contribution, though, was as a locker room leader. Among the players he mentored was Marquis Daniels, who was traded by Dallas to Indiana for Austin Croshere earlier this month.

Glenn Schwartzman, Armstrong's agent, said Daniels' move helped Armstrong, an unrestricted free agent, agree to go to the Pacers.

"I think Marquis going there certainly was a factor," Schwartzman said. "But Darrell's decision was about what was best for Darrell and his family."

Powell and Marshall were players being developed by the Mavericks. Both are coming off their first NBA season.

Powell played 37 games, starting twice, and saw mop-up duty in six playoff games. Marshall played 23 games, starting nine, but was left off the postseason roster.