Boxing superstar Claressa Shields says Laila Ali is being RIDICULOUS in their fight negotiations -- saying Ali wants $5 MILLION despite the fact she "is not relevant in today's time!"
Remember, back in January ... 43-year-old Laila (24-0) went on 'Sway in the Morning' and said she would destroy Shields if they ever fought because Claressa isn't talented enough to hang with her.
Of course, undefeated Shields (10-0) -- the reigning WBO and WBC light middleweight champ -- disagrees ... and offered to settle things in the ring.