The C's are among the teams actively pursuing Crawford, according to CSNNW.com.
The Philadelphia 76ers and Minnesota Timberwolves are reportedly showing interest in the 32-year-old swingman as well, while the Clippers and Suns have reportedly shown "diminutive interest."
Crawford agreed to a two-year, $10 million contract with the Blazers in December that has an opt out option after the first year. The option's deadline has reportedly been extended to June 29 from its previous June 15 date.
Crawford averaged 14 points in 26.9 minutes per game with Portland this past season. He spent the two seasons prior in Atlanta, even earning NBA Sixth Man of the Year honors in 2009-10.
For his career, Crawford has averaged 15.3 points in 31.8 minutes per game.
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