Free-agent center Zaza Pachulia has agreed to re-sign with the Warriors on a one-year, $3.5 million deal, a source has confirmed with The Chronicle. Pachulia, 33, is returning to Golden State on the collective bargaining agreement's non-bird exception, a 20 percent bump from the $2.89 million he made last season. A force on the boards, Pachulia led the team in offensive rebound average (two per game) and total offensive rebounds (140). Pachulia weathered a tumultuous Western Conference finals, when he got death threats from Spurs fans for his role in the ankle injury that forced Kawhi Leonard to miss the final three games of the series. Three weeks later, Pachulia became the first player from the republic of Georgia to win an NBA title. David West has already agreed to come back on the veteran's minimum, and Golden State is working to use its final roster spot to re-sign JaVale McGee. In 14.5 minutes per game for the Heat last season, Reed averaged 5.3 points and 4.7 rebounds.