As a result, New Zealand-fighter Whittaker will have to wait to defend his title after last fighting nearly a year ago in July.
His first attempt was made at 186 pounds, and at his second attempt, he was still.2 pounds over the mark.
UFC main event fights in pay-per-view events have been dropping like flies these past few months and UFC 225 is no different.
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Play was suspended due to fading light, with Russian Daria Kasatkina leading 7-6 (5) 3-3 against second-seeded Caroline Wozniacki. No. 10 seed Sloane Stephens awaits the victor in the quarterfinals after downing Anett Kontaveit 6-2, 6-0.
Because of failing to make weight, Romero will not be eligible to win the title.
"I came for a five round fight, I travelled very far to fight", he said.
But Whittaker has agreed to save the main event and face him in a non-title bout.
Whittaker said: "I have a great team and a great staff". "Why would I? I might as well fight someone heavier than me".
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His willingness to throw the body in the offensive zone played a key role in both of the goals in which he had assists on. It's the latest impact Kempny has made on his new team after fitting in as a top-four defenseman alongside John Carlson .
He struggled to take Whittaker down in their first fight, however, and the Australian is not expecting much to change. But yeah, I just don't see it. The powerful but inexperienced-with-grappling Anderson, at 6-foot tall to Holm's 5-foot-8, will come in with a significant reach advantage and that might help her with wearing down Holm.
Breakout Sydney heavyweight Tai Tuivasa (7-0) faces his toughest test yet in Andrei Arlovski (27-15), a veteran of 25 UFC fights.
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Trump said. " Well, I think that very quickly I'll know whether or not something good is going to happen ". Pierre Lampron, the president of Dairy Farmers of Canada, shot back at Trump's claims about his industry.