Laila Ali believes SHE'S the greatest ... NOT Claressa Shields ... claiming she would WRECK the reigning womens boxing champ because Shields lacks the talent.
Shocking comments from the daughter of Muhammad Ali, who had a GREAT boxing career herself back in the day -- finishing 24-0 and racking up every belt she could along the way.
Now, with 24-year-old Shields obliterating opponents left and right ... there have been some comparisons made between her and Laila -- and Laila AIN'T HAVIN' IT!!!
"First of all, she could never beat me.