Boston Celtics

BOSTON, MA – DECEMBER 6: Daniel Theis #27 of the Boston Celtics and Terry Rozier #12 celebrate during the second half against the Dallas Mavericks at TD Garden on December 6, 2017 in Boston, Massachusetts. The Celtics defeat the Mavericks 97-90. (Photo by Maddie Meyer/Getty Images)

The Celtics continued to build center depth on the fly Tuesday, re-signing restricted free agent Daniel Theis to a two-year deal worth $10 million, according to ESPN’s Adrian Wojnarowski.

A 6-foot-8 German capable of playing both forward and center, Theis will return to Boston after averaging 5.7 points and shooting 54.9 percent from the field (both highs in his two-season NBA career), and with 5.5 points and 3.9 rebounds per game in 129 games with the Celtics since coming over from the EuroLeague in 2017.

With Theis officially re-signed for another two seasons in Boston, the Green’s frontcourt options at the 5 now include Theis, free agent additions Enes Kanter and French center Vincent Poirier, as well as second-year pro Robert Williams III.