The Rockets are adding a pair of free agents with the start of NBA free agency. Houston reportedly inked center Daniel Theis to a four-year, $36 million deal. He was acquired in a sign-and-trade deal with the Bulls and averaged 10 points and 5.9 rebounds per game in 23 games with Chicago last season. Additionally, the Rockets re-signed guard David Nwaba on a three-year, $15 million deal. Nwaba was averaging a career-high 9.2 points per game last season, before wrist surgery ended his year.