After five more wins followed by consecutive defeats to Bobby Hoffman and John Dixson, respectively, Sauer began competing for the RINGS promotion.
After another win followed by a knockout of Valentijn Overeem, Sauer was defeated via doctor stoppage from a cut against Vladimir Matyushenko.
Sauer went 7–3 in the last ten fights of his career, last defeating Ruben Villareal via first-round submission in 2012.
He constantly and without hesitation helped friends and strangers alike, be it an uplifting conversation, meal, or surprise Christmas gifts.
Living with the disorder was a struggle for him as a child, but ultimately led him to his professional fighting career.