Dos Santos vs. Miocic moved to Fight Night card, Sonnen/Silva to UFC 175?

Things change quickly in the UFC, and the UFC 173 card has fallen victim to that credo more than once over the last few weeks. The card has already undergone a change to the main event, and now Kevin Iole of Yahoo Sports is reporting that the co-main event for the card, a heavyweight bout between Junior dos Santos and Stipe Miocic, has been moved to an event in Brazil the week after:

Breaking: JDS-Miocic main event on 5/31 in Brazil. Trying to move Wandy-Chael to Vegas co-main on July 5. The card on 173 "not done yet"

— Kevin Iole (@KevinI) April 8, 2014

UFC 173 went from good to bad to good, and now it looks a tad weak again. It'll be interesting to see what the UFC adds to that card to prop it back up once again. Meanwhile, the Wanderlei Silva vs. Chael Sonnen bout being moved to July is interesting as well. We'll continue to keep you posted on the rapidly-changing summer UFC cards when we hear more.