In exchange, Houston is looking for the best available first-round pick in hopes of redirecting it to the Philadelphia 76ers as part of a sign-and-trade for free agent Jimmy Butler, Wojnarowski added.
Due the Rockets' salary cap situation, a sign-and-trade is the only way the team can land Butler. The Rockets don't have a max slot available to sign him outright.
Capela and Gordon are set to earn $14 million apiece next season, while Tucker is on the books for $8.3 million.
Meanwhile, Philadelphia reportedly plans to be aggressive in its attempt to retain Butler. The Sixers can offer him a five-year, $190-million max deal.
The Houston native averaged 18.2 points on 46.1 percent shooting following his in-season acquisition from the Minnesota Timberwolves.