What is rockets - celtics?

Rockets and Celtics are both professional basketball teams in the NBA (National Basketball Association).

The Houston Rockets were founded in 1967 and are based in Houston, Texas. They have won two NBA championships (in 1994 and 1995) and have had some of the league's greatest players in their history, including Hakeem Olajuwon, Clyde Drexler, Yao Ming, and James Harden.

The Boston Celtics were founded in 1946 and are based in Boston, Massachusetts. They are one of the most successful teams in NBA history, having won 17 championships (the most of any team in the league). The Celtics have had some of the greatest players in basketball history, including Bill Russell, Larry Bird, and Paul Pierce.

Both the Rockets and Celtics have had some notable rivalries throughout their history, including a fierce matchup in the 1980s between the Celtics' Bird and the Rockets' Olajuwon. Nowadays, the two teams are not necessarily known for being rivals, but they both have strong fanbases and are always competitive on the court.