The lightweight division lost one contender and gained another at UFC 127. Dennis Siver's upset win over George Sotiropoulos shook up the lightweight rankings.
Already a division with an unclear title picture, the lightweight division will now have to sort out where Siver falls in line as a contender. The extremely deep division continues to produce new contenders as well, so the situation atop the division might be crazy for awhile.
Top lightweights formerly from the WEC, such as Anthony Pettis and Ben Henderson, will need to prove themselves before they can truly be considered top lightweights. Pettis will get a chance to do so immediately, as he is expected to face Clay Guida in his next fight.