So far all indications is that he has signed with RSL. Although, I cannot for the life of me find his roster picture on WireImage... http://real.saltlake.mlsnet.com/MLS/players/bio.jsp?team=rsl&player=knowles_c&playerId=kno701429
Yes, he is still with RSL, as a reserve player. He did play and even start some matches for RSL earlier in the season.