The team later said the three were released because they violated team policy.
Montgomery said that said Wood and Jefferson were smoking a cigar in their hotel room in Kansas City and no illegal drugs were involved. Montgomery was a third-round selection by the team in April's draft and did not appear in any games with the team.
"It is our position that the story written about Sam Montgomery by ESPN, which sets forth that he was dismissed from the Houston Texans for using marijuana, is completely inaccurate," Jeff Guerriero said in a statement sent by text message to ESPN.com. "Mr. Montgomery was dismissed from the team for allegedly violating a team rule. This can be confirmed by the Houston Texan personnel."