According to TMZ Sports, Brees said he has bought $15 million worth of jewelry from Vahid Moradi over the years, but his collection was allegedly appraised to be worth $9 million less than Moradi claimed.
Brees is reportedly "seeking at least $9 million in damages."
Moradi operates the CJ Charles jewelry shop in San Diego.
Eric M. George, who represents Moradi, said the following regarding Brees' lawsuit, per TMZ Sports:
"Drew Brees aggressively purchased multi-million dollar pieces of jewelry. Years later, claiming to suffer 'cash flow problems,' he tried to bully my client into undoing the transactions.
"Mr. Brees's behavior and his belief that he was wronged because the jewelry did not appreciate in value as quickly as he hoped both demonstrate a lack of integrity and contradict basic principles of both economics and the law.
"He should restrict his game-playing to the football field, and refrain from bullying honest, hard-working businessmen like my client."
According to the suit, Brees believed he was lied to when Moradi told him the jewelry he purchased was sure to appreciate in value.
The 39-year-old Brees signed a two-year, $50 million contract to return to the Saints this offseason, per Spotrac.