Brandon Marshall -- Racing for His Number, But With a Catch ...

Brandon Marshall has accepted a challenge to race for his jersey number from his new teammate, but the veteran wideout has thrown a few conditions on top ... sensing a straight race is not in his favor.
So when Marshall was traded to the New York Jets, he quickly learned his #15 already belonged to fellow WR Saalim Hakim.
Hakim made a video with a challenge: they race and if Marshall beats him, he can have the number for free. If Hakim wins, Marshall can still have the number ... but he's gotta fork over $25,000 for it. Saalim tells TMZ Sports that Marshall has accepted the challenge, but Marshall wants to race AND compete in another challenge of his choosing ... which is to remain a mystery.