This is absolutely too much too soon. Roberto is tough and can grapple, but he is not nearly dangerous enough to win this fight. Onama is dog who doesn't panic if he is taken down. Onama wins here and probably by finish.

David Onama

David Onama is a kickboxer who likes to plot forward and control the pace. Typically he isn't incredibly high volume, but he is effective. He has a very long jab that he is constantly throwing out there. He is busy in the clinch where he throws knees and elbows. He has a 52% takedown defense and has been taken down 7 times in his last 2 fights, but he also won them both.

Roberto Romero

Roberto Romero is stepping up on short notice and has no easy task in front of him. Style wise he is a forward pressure grappler who closes distance, gets you to the cage and then works takedowns. On top he works control more than he looks for a finish. His striking isn't great, but he is tough and can take a shot