After one fight in the featherweight division, former “Ultimate Fighter” winner Diego Sanchez is moving back up to the lightweight division.

Sanchez made the announcement on his twitter account stating the ban on re hydration IV as the main reason for the move back to 155-pounds. Due to the UFC’s new anti-doping program administered by the U.S. Anti-Doping Agency (USADA), fighters are no longer allowed to use intravenous therapy to help them after weight-cutting for a bout.

In November Sanchez made his debut in the featherweight division when he went up against former title contender Ricardo Lamas. Sanchez would lose the fight via a unanimous decision. The bout played out like many of Sanchez’ have in the past. He took a great beating in the bout but refused to to go down. He tried to bait Lamas into a slugfest but he could not get the former title challenger to bite.

Sanchez (25-8) has only two wins in his last five bouts but has remained one of the most entertaining fighter to watch. His weight fluctuation has really hindered his career and a real lack of consistency has held him back from maybe achieving more in his career. Even with all int inconsistencies Sanchez was still able to win the first season of the “Ultimate Fighter”, challenge BJ Penn for the UFC lightweight championship in 2009 and has never been knocked out or submitted in his professional career.

There has been no word on when Sanchez plans to return to action or who he will face.