By Keith Idec

HOUSTON – Brandon Adams smiled wide as he stood in front of a significantly taller Jermall Charlo after they weighed in Friday afternoon.

Charlo stood, stone-faced, as he stared downward, into Adams’ eyes. Charlo told Showtime’s Steve Farhood he didn’t know what to make of Adams’ unusually cheerful demeanor, but Adams assured Farhood that he isn’t merely happy to get his first world title shot Saturday night.

Moments earlier, Charlo and Adams made weight for their 12-round, 160-pound title fight.

The 6-feet Charlo came in slightly lighter, 159½ pounds, than the 5-feet-9 Adams when he stepped on the Texas Combative Sports Program’s scale at NRG Center. Adams officially weighed exactly 160 pounds.

Houston’s Charlo (28-0, 21 KOs) and Los Angeles’ Adams (21-2, 13 KOs) will square off at nearby NRG Center in the main event of a “Showtime Championship Boxing” tripleheader.

The 29-year-old Charlo, whom the WBC recently elevated from its interim middleweight title-holder to its world middleweight champ, is heavily favored to defeat Adams.

Adams, also 29, won the fifth season of “The Contender” reality series seven months ago. He is the WBC’s 12th-ranked contender at 160 pounds.

Before Charlo and Adams made weight, Erickson Lubin and Zakaria Attou met their contractual obligations for their WBC super welterweight elimination match.

Lubin (20-1, 15 KOs), of Orlando, Florida, officially weighed 153¾ pounds. The southpaw was 154¼ pounds when he first stepped on the scale, but he was 153¾ pounds on his second attempt shortly thereafter.

Attou (29-6-2, 7 KOs), of Paris, France, initially stepped on the scale at 154¼ pounds as well, also slightly over the limit for their WBC eliminator. He stripped naked and officially weighed in at 153¾ pounds, too.

Lubin and Attou engaged in a lengthy staredown after they made weight.

If he defeats the 14th-ranked Attou, Lubin, who’s ranked No. 4 by the WBC, expects to become that sanctioning organization’s mandatory challenger for the winner of the rematch between WBC 154-pound champ Tony Harrison (28-2, 21 KOs) and former champ Jermell Charlo (32-1, 16 KOs).

Showtime will televise the Lubin-Attou fight immediately before the Charlo-Adams match.

Mexico’s Eduardo Ramirez (22-1-3, 9 KOs) and the Dominican Republic’s Claudio Marrero (23-3, 17 KOs) also made weight Friday for their 12-round WBA featherweight elimination match.

Ramirez, who holds the WBA’s gold featherweight championship, came in at 125¼ pounds. Marrero, who’s ranked No. 9 by the WBA, weighed in at 125¾ pounds.

Showtime’s three-bout broadcast will begin with the Ramirez-Marrero match at 9 p.m. ET/6 p.m. PT.

Keith Idec is a senior writer/columnist for BoxingScene.com. He can be reached on Twitter @Idecboxing.